The Superman shield, also known as the Superman logo, Superman symbol, or Superman S, is the iconic emblem for the fictional
DC Comics
DC Comics (originally DC Comics, Inc., and also known simply as DC) is an American comic book publisher owned by DC Entertainment, a subsidiary of Warner Bros. Discovery. DC is an initialism for "Detective Comics", an American comic book seri ...
superhero
A superhero or superheroine is a fictional character who typically possesses ''superpowers'' or abilities beyond those of ordinary people, is frequently costumed concealing their identity, and fits the role of the hero, typically using their ...
Superman
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
. As a representation of one of the first superheroes, it served as a template for character design decades after Superman's first appearance. The tradition of wearing a representative symbol on the chest was followed by many subsequent superheroes, including
Batman
Batman is a superhero who appears in American comic books published by DC Comics. Batman was created by the artist Bob Kane and writer Bill Finger, and debuted in Detective Comics 27, the 27th issue of the comic book ''Detective Comics'' on M ...
,
Spider-Man
Spider-Man is a superhero in American comic books published by Marvel Comics. Created by writer-editor Stan Lee and artist Steve Ditko, he first appearance, first appeared in the anthology comic book ''Amazing Fantasy'' #15 (August 1962) in ...
,
Green Lantern
Green Lantern is the name of several superheroes appearing in American comic books published by DC Comics. They fight evil with the aid of rings that grant them a variety of extraordinary powers, all of which come from imagination, fearlessness, ...
,
the Flash
The Flash is the name of several superheroes appearing in American comic books published by DC Comics. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in ''Flash Comics'' #1 (cover date, cover-dated Jan ...
,
Wonder Woman
Wonder Woman is a superheroine who appears in American comic books published by DC Comics. The character first appeared in ''All Star Comics'' Introducing Wonder Woman, #8, published October 21, 1941, with her first feature in ''Sensation Comic ...
,
Hawkman
Hawkman is the name of several superheroes appearing in American comic books published by DC Comics. Created by writer Gardner Fox and artist Dennis Neville, the original Hawkman first appeared in ''Flash Comics'' #1, published by All-American ...
, and many others.
In its current form, the logo is a red capital "S" inside a pentagonal yellow stylized shield with a red border. In earlier Superman stories, "S" was simply an initial for "Superman", but in the
1978 film, it was portrayed as the family crest of the House of El, the family of Superman.
Evolution of the symbol
In its original inception in
''Action Comics'' #1, Superman's symbol was a letter ''
S'' with red and blue on a yellow
police badge symbol that resembled a
shield
A shield is a piece of personal armour held in the hand, which may or may not be strapped to the wrist or forearm. Shields are used to intercept specific attacks, whether from close-ranged weaponry like spears or long ranged projectiles suc ...
. The symbol was first changed a few issues later in ''Action Comics'' #7. The shield varied over the first few years of the comics, and many times was nothing more than an inverted triangle with an ''S'' inside of it.
The shield first became a diamond in the
Fleischer Studios
Fleischer Studios () was an American animation studio founded in 1929 by brothers Max and Dave Fleischer, who ran the pioneering company from its inception until its acquisition by Paramount Pictures in 1942, the parent company and the distri ...
animated serial
''Superman''. It was black with a red ''S'' outlined with white (or occasionally with yellow). The ''S'' has varied in size and shape and the diamond shape containing it has also changed size and shape. Extreme examples of this would be the very large logo on the
Dean Cain costume from the television series ''
Lois & Clark: The New Adventures of Superman'' and the comparatively small version of the shield as depicted in the 2006 film ''
Superman Returns''. It has, in most incarnations, retained its original color, while changing shape here and there. The classic logo is the basis for virtually all other interpretations of the logo.
In the mid-1990s, when Superman's costume and powers changed briefly, during the "
Superman Red/Superman Blue
"Superman Red/Superman Blue" refers to two comic book storylines published by DC Comics featuring Superman.
Silver Age story
The original Superman-Red/Superman-Blue tale, "The Amazing Story of Superman-Red and Superman-Blue!", is an "Elseworlds" ...
" comic book storylines, the shield changed colors and slightly changed shape, in accordance with the changes in the costume. In 1992's 75th edition of Vol 2, the logo is shown soaked in blood, depicting Superman's death. In ''Superman'' #123, Superman's new powers force him to find a suit capable of containing his new abilities. The effective material found to create Superman's suit, along with being blue and silver, was also courtesy of
Lex Luthor. Not only did the colors and powers change, the logo also evolved into a re-imagined "electric" emblem. In the miniseries
''Kingdom Come'', an aged Superman sported an ''S''–like symbol against a black background in a red pentagon.
In the 2000s television series ''
Smallville
''Smallville'' is an American superhero fiction, superhero television series developed by writer-producers Alfred Gough and Miles Millar, based on the DC Comics character Superman created by Jerry Siegel and Joe Shuster. The series was produce ...
'', the ''S'' symbol originally appeared as a diamond with a vertical
infinity symbol
The infinity symbol () is a mathematical symbol representing the concept of infinity. This symbol is also called a ''lemniscate'', after the lemniscate curves of a similar shape studied in algebraic geometry, or "lazy eight", in the terminolo ...
(to be similar to the ''S''), in an attempt to make it seem more alien. However, beginning with the
sixth-season episode "Zod",
Clark Kent
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
is given a crystal bearing the ''S'' logo in the style of the ''Superman Returns'' logo. The logo also appeared in the first episode of the series, when the students captured Clark by giving him a
kryptonite
Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics. In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton (comics), Krypton that emits a u ...
necklace and tied him to a cross-like beam in a cornfield and painted a red 'S' on Clark's chest.
Symbol evolution
Some of the symbols used by Superman through the years are:
Superman logo 1938.png, 1938
Superman logo 1938-39.png, 1938–39
Superman logo 1940.png, 1940
Superman alternate logo 1940-46.png, 1940–46
Superman logo 1944.png, 1944
Superman shield.svg, 1977–present
Superman black logo 2001-03.png, 2001–03
Superman logo 2011-16.png, 2011–16
;Notes
Representations
Initially, the S-shield had one meaning: ''S'' for Superman. One of the first alternative meanings was presented in ''
Superman: The Movie'', in which it was not an ''S'', but rather the ''S''-shaped
Coat of arms
A coat of arms is a heraldry, heraldic communication design, visual design on an escutcheon (heraldry), escutcheon (i.e., shield), surcoat, or tabard (the last two being outer garments), originating in Europe. The coat of arms on an escutcheon f ...
of the
House of El.
Marlon Brando
Marlon Brando Jr. (April 3, 1924 – July 1, 2004) was an American actor. Widely regarded as one of the greatest cinema actors of the 20th century,''Movies in American History: An Encyclopedia'' , who portrayed
Jor-El
Jor-El is a character appearing in American comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, Jor-El first appeared in the Superman (comic strip), ''Superman'' newspaper comic strip in 1939.
Jor-El is Supe ...
, conceived the idea of the "S" being a family crest, from which folklore spun off. In the Superman reboot story ''
The Man of Steel'', the logo was designed by
Jonathan Kent and derived from an ancient Native American symbol. It was featured on a medicine blanket given to an ancestor of the Kent family by a Native American tribe after he helped to cure them of a plague. The symbol was supposed to represent a snake, an animal held to possess healing powers by the tribe, and thus would imply that, by wearing this symbol, Superman was a metaphorical healer. This origin was also included in the 1997 Superman encyclopedia.
In 2004,
Mark Waid's ''
Superman: Birthright'' series stated that the S-Shield is the
Kryptonian symbol for "hope" and Superman believes it may have begun as a coat of arms for the House of El. Later, writer
Geoff Johns
Geoffrey Johns (born January 25, 1973) is an American comic book writer, screenwriter, and film and television producer. Johns's work on the DC Comics characters Green Lantern, Aquaman, Flash (comics), Flash, and Superman has drawn critical accl ...
confirmed it was indeed a coat of arms, as well as a symbol for hope. In the 2013 film ''
Man of Steel'', Jor-El mentions that the symbol represents the House of El and means "hope", and Superman later also specifies that it is not an "S" when
Lois Lane
Lois Lane is a fictional character appearing in American comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, she first appeared in ''Action Comics'' Action Comics 1, #1 (June 1938). Lois is an award-winning ...
asks what the "S" was short for. Superman further explains that the design is based on a river in the 2017 film ''
Justice League
The Justice League, or Justice League of America (JLA), is a group of superheroes appearing in American comic books published by DC Comics. The team first appeared in ''The Brave and the Bold'' #28 (March 1960). Writer Gardner Fox conceived the ...
''.
In ''
Supergirl
Supergirl is the name of several fictional superheroines appearing in American comic books published by DC Comics. The original, current, and most well known Supergirl is Supergirl (Kara Zor-El), Kara Zor-El, the cousin of superhero Superman. Th ...
'',
Kara Danvers
Kara Danvers, also known as Kara Zor-El on her homeworld, is a fictional character in the Arrowverse franchise, mainly the television series Supergirl (TV series), ''Supergirl''. Adapted for television by Greg Berlanti, Ali Adler and Andrew Kre ...
states that the Kryptonian symbol stands for her family's motto, "Stronger together."
House of El
Marv Wolfman
Marvin Arthur Wolfman (born May 13, 1946) is an American comic book and novelization writer. He worked on Marvel Comics's ''The Tomb of Dracula'', for which he and artist Gene Colan created the vampire-slayer Blade (character), Blade, and DC Comi ...
's
novelization
A novelization (or novelisation) is a derivative novel that adapts the story of a work created for another medium, such as a film, TV series, stage play, comic book, or video game. Film novelizations were particularly popular before the advent ...
of the film ''
Superman Returns'' depicts the symbol as belonging to one of the three primary houses of Krypton that brought peace to the planet after a civil uprising, a serpent coiled inside a shield, a warning not to return to the ways of violence and deception. The shield has since been taken as a coat of arms, resulting in Jor-El's continued presence in the council despite his "mad" findings. The other two are merely described, including Pol-Us' eye of vigilance and Kol-Ar's open hand of truth and justice.
Cape
In almost all versions, Superman's red cape has an all-yellow version of the logo, with a thin black line separating the areas. A notable exception is in ''
Superman: The Animated Series'', where the logo was absent from Superman's cape. This was due to the difficulty in animating the S on the flowing cape. In the 2006 film ''
Superman Returns'', the logo appeared on the belt buckle in reverse colors (yellow diamond and S with red background pieces) instead of on Superman's cape. The logo is also absent from
Superman
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
's cape in the 2013 film ''
Man of Steel'' due to the difficulty of animating a cape with the logo in CGI shots. In the 2011 reboot of the comic book series, on his cape is a black pentagon and S with a red background piece.
Variants
In the 1960s the tiny bottle city of
Kandor, the miniaturized capital city of the planet Krypton, resided in Superman's
Fortress of Solitude
The Fortress of Solitude is a fictional fortress appearing in American comic books published by DC Comics, commonly in association with Superman. It is the place where Superman first learned about his true identity, heritage, and purpose on Eart ...
. Originally, certain inhabitants resembling Kal-El formed the
Superman Emergency Squad and would, on occasion, leave the bottle, enter the Earth's atmosphere and gain super powers to aid Superman. As designed by artist
Curt Swan
Douglas Curtis Swan (February 17, 1920 – June 17, 1996) was an American comics artist. The artist most associated with Superman during the period fans call the Bronze Age of Comic Books, Swan produced hundreds of covers and stories from the 195 ...
, their uniforms were similar to that of Superman save for the 'S' on their chests which resembled the early version, the 'S' and border in red on a yellow field, but in an elongated triangle.
During the ''Reign of the Supermen'' story arc, Each of the four different Supermen was represented by a variant of the symbol, which each wore on their person.
*
Eradicator wore a normal shield when he attempted to continue Superman's career. Later on, he wore a slightly altered, more curved version with an opening in the border and which was red and black instead of yellow and red.
*
Cyborg Superman's shield was half-normal on the left side, but the red darkened to an almost black color on the right half.
*
Superboy
Superboy is an identity used by several fictional superheroes appearing in American comic books published by DC Comics. These characters have been featured in several eponymous comic series, in addition to ''Adventure Comics'' and other series ...
(
Conner Kent
Conner Kent is a superhero appearing in American comic books published by DC Comics. The character first appeared as a modern variation of Superboy in ''The Adventures of Superman (comic book), The Adventures of Superman'' #500 (June 1993), and ...
) wore an all-yellow symbol stitched into the back of his leather jacket, in addition to a normal one on his chest.
*
Steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength a ...
wore an all-metallic symbol. The classic 'S' was redesigned into metallic burnt
red color
The Red Color (, transl.: ''Tzeva Adom,'' i.e. ''code red'') is an early-warning radar system originally installed by the Israel Defense Forces in several towns surrounding the Gaza Strip to warn civilians of imminent attack by rockets (usuall ...
with a grey undertone in the background.
Other variations include:
*Black and red
**Conner Kent sports a black and red variant of the symbol on his third costume.
Lex Luthor hypothesized it is because that version of the symbol was everywhere following the death of Superman and his consequent first appearance.
**In ''
Kingdom Come'', Superman wears a black and red, simplified version following his return.
**After the
Imperiex War, Superman wore the black and red variant to signify his mourning of the losses during the war.
['']Superman
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
'' (vol. 2) #174 (November 2001)
**The Eradicator, for a time, wore a red and blacked, curvier version of the S-Shield.
*
Bizarro
Bizarro () is a supervillain or anti-hero appearing in American comic books published by DC Comics. The character was created by writer Otto Binder and artist George Papp as a "mirror image" of Superman, and first appeared in ''Superboy (comic bo ...
's symbol is a reversed purple and yellow version.
*The inverted symbol, first seen in ''
52'', means "resurrection" in Kryptonian.
*
Jor-El
Jor-El is a character appearing in American comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, Jor-El first appeared in the Superman (comic strip), ''Superman'' newspaper comic strip in 1939.
Jor-El is Supe ...
sports a white symbol on his black clothing, as well as a black symbol on his white clothing in the 1978
''Superman'' movie.
*In his modern appearances,
Superman of Earth-2 wears a slightly different version of the symbol. Its most notable difference is an exaggerated
serif
In typography, a serif () is a small line or stroke regularly attached to the end of a larger stroke in a letter or symbol within a particular font or family of fonts. A typeface or "font family" making use of serifs is called a serif typeface ( ...
on the 'S'.
*A variation of the symbol, designed as a stubbed red lightning bolt against a black shield has been used in several media, including an Elseworlds where Darkseid raised Kal-El, and was the basis of one of the final season of ''
Superman: The Animated Series'', and an episode named "Brave New Metropolis" from an alternate reality where Superman and Luthor took over Metropolis.
*A further variation, this time a white symbol against a red background, was used in episodes of ''
Justice League
The Justice League, or Justice League of America (JLA), is a group of superheroes appearing in American comic books published by DC Comics. The team first appeared in ''The Brave and the Bold'' #28 (March 1960). Writer Gardner Fox conceived the ...
'' and ''
Justice League Unlimited
''Justice League Unlimited'' (''JLU'') is an American superhero animated series that was produced by Warner Bros. Animation with DC Comics in season 3 and aired on Cartoon Network. Featuring a wide array of superheroes from the DC Universe, and ...
'', used by the Superman of the
Justice Lords.
*Black and white
**Superman briefly wore an all-black costume with a white shield following his resurrection at the conclusion of ''
The Death of Superman''.
**In ''
Batman Beyond
''Batman Beyond'' (also known as ''Batman of the Future'' in Europe) is an American superhero animated television series based on the DC Comics superhero Batman, and serving as the sequel to both '' Batman: The Animated Series'' and '' The New Ba ...
'', an aged Superman wears a heavily stylised symbol, consisting of a white slash within an inverted black triangle, and a rhombus in the upper left corner. A similar symbol is worn by an adult
Jon Kent in the alternate future depicted in ''
Futures End''.
**After being transported to the New 52 universe, the pre-Flashpoint Superman wore a black costume with an emblem resembling a white version of the ''Kingdom Come'' shield.
*The symbol has been adapted to various flags in alternate realities, including the
Nazi
Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...
swastika
The swastika (卐 or 卍, ) is a symbol used in various Eurasian religions and cultures, as well as a few Indigenous peoples of Africa, African and Indigenous peoples of the Americas, American cultures. In the Western world, it is widely rec ...
(in JL-Axis) and
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
hammer and sickle
The hammer and sickle (Unicode: ) is a communist symbol representing proletarian solidarity between industrial and agricultural workers. It was first adopted during the Russian Revolution at the end of World War I, the hammer representing wo ...
(''
Superman: Red Son'').

*In ''
Justice League: The New Frontier'' and ''
JSA: The Liberty Files'', the shield has black background pieces and a yellow outline, resembling the Fleischer Studios version.
*In ''
Superman: Earth One'', the shield has an additional yellow outline. Additionally, on the cape, the "S" and the pentagonal outline are yellow, while the inner pentagon is red.
*In ''
Supergirl
Supergirl is the name of several fictional superheroines appearing in American comic books published by DC Comics. The original, current, and most well known Supergirl is Supergirl (Kara Zor-El), Kara Zor-El, the cousin of superhero Superman. Th ...
'', the emblem worn by Supergirl has a blue background, with yellow outlines around the red S and border.
Wearers of the shield
Kryptonian family members of Superman wear the symbol, but sometimes it is worn to honor Superman. After ''
The Death of Superman'', many
DC Comics
DC Comics (originally DC Comics, Inc., and also known simply as DC) is an American comic book publisher owned by DC Entertainment, a subsidiary of Warner Bros. Discovery. DC is an initialism for "Detective Comics", an American comic book seri ...
superheroes wore a black armband with the Superman logo.
*Superman
**
Kal-El
**
Kal-L
Superman of Earth-Two (Kal-L) is an alternate version of the fictional superhero Superman, who appears in American comic books published by DC Comics. The character was introduced after DC Comics created Earth-Two, a Multiverse (DC Comics), para ...
(variant)
**
Kal Kent (variant)
*
Supergirl
Supergirl is the name of several fictional superheroines appearing in American comic books published by DC Comics. The original, current, and most well known Supergirl is Supergirl (Kara Zor-El), Kara Zor-El, the cousin of superhero Superman. Th ...
**
Kara Zor-El
**
Linda Danvers
**
Matrix
Matrix (: matrices or matrixes) or MATRIX may refer to:
Science and mathematics
* Matrix (mathematics), a rectangular array of numbers, symbols or expressions
* Matrix (logic), part of a formula in prenex normal form
* Matrix (biology), the m ...
*
Superboy
Superboy is an identity used by several fictional superheroes appearing in American comic books published by DC Comics. These characters have been featured in several eponymous comic series, in addition to ''Adventure Comics'' and other series ...
**
Kal-El (Superman as a teenager; pre-1986)
**
Conner Kent
Conner Kent is a superhero appearing in American comic books published by DC Comics. The character first appeared as a modern variation of Superboy in ''The Adventures of Superman (comic book), The Adventures of Superman'' #500 (June 1993), and ...
(red and black variant)
**
Superboy-Prime (carves an S-symbol in blood on his chest).
**
Jonathan Samuel Kent (the new Superboy in
DC Rebirth
DC Rebirth is a 2016 relaunch by the American comic book publisher DC Comics of its entire Line (comics), line of ongoing monthly superhero comic book titles. Using the end of The New 52 (2011–2016) initiative in May 2016 as its launching point ...
, son of Superman and
Lois Lane
Lois Lane is a fictional character appearing in American comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, she first appeared in ''Action Comics'' Action Comics 1, #1 (June 1938). Lois is an award-winning ...
)
*
Superwoman
Superwoman is the name of several fictional characters in DC Comics. Most of them are, like Supergirl, women with powers similar to those of Superman, such as flight, invulnerability, and enhanced strength.
In 1942, DC Comics trademarked the n ...
**
Lucy Lane (white and red variant)
*
House of El
**
Jor-El
Jor-El is a character appearing in American comic books published by DC Comics. Created by writer Jerry Siegel and artist Joe Shuster, Jor-El first appeared in the Superman (comic strip), ''Superman'' newspaper comic strip in 1939.
Jor-El is Supe ...
(''
Superman: Birthright'', ''
Superman
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
'', ''
Action Comics
''Action Comics'' is an American comic book/Comic anthology, magazine series that introduced Superman, one of the first major superhero characters. The publisher was originally known as Detective Comics Inc., which later merged into National ...
'' #850,
Man of Steel)
**Lar Gand (
Mon-El)
**
Zor-El
*Others
**
Krypto (shown as tag on his collar)
**
Bizarro
Bizarro () is a supervillain or anti-hero appearing in American comic books published by DC Comics. The character was created by writer Otto Binder and artist George Papp as a "mirror image" of Superman, and first appeared in ''Superboy (comic bo ...
(reversed 'S', sometimes purple and yellow)
** The
Superman Emergency Squad from
Kandor, a red 'S' in an elongated triangle
**
Hank Henshaw (red and black variant, like Kon-El. It is sometimes shown as a white and black variant)
**
Steel (John Henry Irons)
**
Natasha Irons
**
Eradicator (variant)
**
Strange Visitor (variant)
**
Preus
**
Alura (red and white variant)
Diamond and eight shield
In the television series ''
Smallville
''Smallville'' is an American superhero fiction, superhero television series developed by writer-producers Alfred Gough and Miles Millar, based on the DC Comics character Superman created by Jerry Siegel and Joe Shuster. The series was produce ...
'', an octagonal silver metallic key is used in the
Kawatche caves, as well as in a transport device used to travel to the
Fortress of Solitude
The Fortress of Solitude is a fictional fortress appearing in American comic books published by DC Comics, commonly in association with Superman. It is the place where Superman first learned about his true identity, heritage, and purpose on Eart ...
. Along the edges are imprinted
Kryptonian characters, one of which is the diamond border of the Superman shield with a figure 8 inside of the diamond instead of the S. The 8-shield is later described as being from an ancient form of the Kryptonian language (in the Kryptonian alphabet employed in the 2004 storyline ''The Supergirl from Krypton'', it corresponds to the letter S), while the modern symbol is the familiar S-shield. The familiar S-shield is seen in
season 9. It is used as
Clark Kent
Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, which first appeared in the comic book ''Action Comics'' Action Comics 1, #1, published in the United States on April 18, 1938.The copyright date of ''Action Comics ...
's calling card in his vigilante actions in
Metropolis
A metropolis () is a large city or conurbation which is a significant economic, political, and cultural area for a country or region, and an important hub for regional or international connections, commerce, and communications.
A big city b ...
. Clark, known as the Blur, burns the sign using his heat vision in various places throughout the city. In the season 9 episode "Rabid", Clark mentions while talking to
Oliver Queen that the mark "gives people hope."
References
{{Superman
Fictional elements introduced in 1938
Fictional symbols
Logos
Logo of Superman
Symbols introduced in 1938