According to the theory of the art historian Marcia B. Hall, which has gained considerable acceptance, ''unione'' () is one of the

canonical painting modes of the Renaissance Italian Renaissance painting is the painting of the period beginning in the late 13th century and flourishing from the early 15th to late 16th centuries, occurring in the Italian Peninsula, which was at that time divided into many political sta ...

; that is, one of four modes of painting colours available to Italian

High Renaissance In art history, the High Renaissance was a short period of the most exceptional artistic production in the Italian states, particularly Rome, capital of the Papal States, and in Florence, during the Italian Renaissance. Most art historians stat ...

painters, along with

sfumato Sfumato ( , ; , i.e. 'blurred') is a painting technique for softening the transition between colours, mimicking an area beyond what the human eye is focusing on, or the out-of-focus plane. It is one of the canonical painting modes of the Renaissan ...

chiaroscuro In art, chiaroscuro ( , ; ) is the use of strong contrasts between light and dark, usually bold contrasts affecting a whole composition. It is also a technical term used by artists and art historians for the use of contrasts of light to ach ...

and

cangiante Cangiante () is a painting technique where, when using relatively pure colors, one changes to a different, darker color to show shading, instead of dulling the original color by darkening it with black or a darker related hue. According to the th ...

. Unione was developed by

Raphael Raffaello Sanzio da Urbino (; March 28 or April 6, 1483April 6, 1520), now generally known in English as Raphael ( , ), was an Italian painter and architect of the High Renaissance. List of paintings by Raphael, His work is admired for its cl ...

, who exemplified it in the ''

Stanza della Segnatura The four Raphael Rooms () form a suite of reception rooms in the Apostolic Palace, now part of the Vatican Museums, in Vatican City. They are famous for their frescoes, painted by Raphael and his workshop. Together with Michelangelo's Sistine Chap ...

''. Unione is similar to sfumato, but is more useful for the edges of chiaroscuro, where vibrant colors are involved. As with chiaroscuro, ''unione'' conveys the contrasts, and as sfumato it strives for harmony and unity, but also for coloristic richness. Unione is softer than chiaroscuro in the search for the right tonal key. There should be the harmony between light and dark, without the excesses and accentuation of a chiaroscuro mode.

References

Painting techniques {{art-technique-stub