Local Color and Ambient Color


In this post I will describe two different ways to use color in a painting that have
special significance to me, since I tend to oscillate between the two.

Roughly speaking, these two ways correspond to the Florentine school and the Venetian school. In the Florentine school local color predominates, ie, the color that the object itself has. On the other hand, in the Venetian school ambient light predominates, the color and quality of the light that bathes the scene.

In the first case, in the Florentine school, a white sheet of paper tends to be shown as white, even if it obviously has its light, half-tone and shadow areas. Actually, the painters of the Renaissance worked with 5 or even 7 different light areas to establish volume, but lets keep it simple. If I’m painting a red drapery, I mix colors for its light, halftone and shadow areas, and so on for all other objects. This results in a scene that is lit by a relatively uniform constant diffuse colorless light thoughout the whole scene. The result is an idealized scene in accordance to the anatomical idealization of Florentine painting. In fact, there are no people with such fine proportions and contours nor such even uniform lighting situations in nature.

Sandro Botticelli, Primavera,

Sandro Botticelli, Primavera, c. 1482.

In a current day painting that has, of course, very different aesthetic goals from renaissance painting, this method would correspond to choose a palette of pre-mixed colors in which have a few dominant colors and from these colors create some variations, particularly in value (how light or dark a color is). Then simply place the color in the areas one beside the other, with or without fusion of contours, basing the painting on the original “chord” of colors chosen. And do it finishing work on an area of ​​the painting before doing another.

In the Venetian school, on the other hand, the idea is that the local color, the color that an object has, changes depending on the charcater and color of the general ambient light. In it, a white sheet of paper, under a light pinkish twilight environment, will not be painted white. It is a pinkish gray of a more or less darker shade depending on the intensity of the light falling on it in that part of the scene. Our brain compensates allowing us to recognize a white paper sheet under any lighting condition. This results in less idealization and clarity in individual objects, but the scene as a whole increases in emotional intensity and becomes much more convincing, with clearer areas of intense light.

Titian, The Flaying of Marsyas, oil, c. 1570–1576.

Titian, The Flaying of Marsyas, oil, c. 1570–1576.

In a current day painting this would imply using a midtone priming background color that matches the average paint tone , or at least a manner of painting that does not finish one area after the other but works the whole canvas simultaneously touching all areas . In this case, transparency of colors and fragmented brushstrokes become much more important. The contours tend to become more or less indistinct with lighting and distance and one or more light sources clearly apear on the scene.

Two different examples in my painting:

Mauricio Piza, São Vito e a Mó, Saint Vito and the Millstone, oil, 2012. Atmospheric Color.

Mauricio Piza, São Vito e a Mó, Saint Vito and the Millstone, oil, 2012. Ambient Color.

Mauricio Piza, Outro Lugar, ost, 80 x 100 cm. 2014

Mauricio Piza, Outro Lugar, Another Place, oil, 2014. Local Color.

Juan Gris and Anselm Kiefer clearly use ambient light in these paintings.

Juan Gris, Guitarra e Travessa de Frutas, 1918

Juan Gris, Guitar e And Fruit, oi, 1918.


Anselm Kiefer, Nigredo,

On the other hand, Picasso and Frank Stella use local color in these:


Picasso, Still Life with a Bottle ofr Rum, oil, 1914.


Frank Stella, Madinat as-Salam I , Polymer and fluorescent paint on canvas , 1970.

Method and Improvisation


Choose a mode and then play some riffs and some licks. Jive on.

It’s funny how Jazz terms are extremely familiar to me and are easily understood. And mind that in reality I may be completely misunderstanding them since I can barely carry a tune when I whistle and have no musical background whatsoever. In my ignorance, the way I think about painting seems to have close connection with musical improvisation.

Like in a game, you set the initial conditions and rules, but you cannot know how the game is going to play out. Its almost as if in voluntarily restricting the number of possible options by setting up certain rules, certain limits to creation, the playing became much more focused and fun.

To choose a Mode (in the musical sense), is to chose the scale, the general tonality that establishes the emotional quality or mood. In painting this is sometimes established through a predominant colour that establishes the atmosphere of the piece and that unifies it. In my case I establish this through a colored Imprimatura. Imprimatura is this veil of paint that covers the white background of a painting.

Another thing that establishes this general mood is this grid that I have been using and that sets a basic beat over which the lines of the composition will develop their rhythmic variations.

Mauricio Piza, Variações sobre uma Bananeira, Banana Tree Variations, 2014, 1,50 X 2,00 m

Mauricio Piza, Variation on a Banana Tree, 2014, 1,50 x 2,00 m

Play some Riffs and some Licks. A riff é thematic, it’s a recurring phrase or pattern, característic and easyly recognizable: the evident and ondulating banana leaves; the prisms and hard sharp retangles  of the buildings and skyscapers.

Licks are the not so identifiable and are incomplete forms: they are chords and progressions; the curves and geometries that create a whole world of vegetable and urban forms, signs, clouds and trees and that in their ambiguity create this place that is no place, yet strangely familiar.

To Jive is this playful improvisation in music and speech. I go on finding the composition as I go along, in other words, I have no idea of the final result. As I avoid correcting or changing anything, the possibilities decrease as the work progresses. Everything stays there until the very end. It feals like pilling blocks, always on the verge of the whole thing collapsing.

Mauricio Piza, Variação sobre uma Bananeira, 2014 ainda em processo, 1,50 X 2,00 m

Mauricio Piza, Variation on a Banana Tree, 2014, in process, 1,50 x 2,00 m

Musical improvisation happens in real time and allows no correction. Nothing in this paintings is really corrected. So in a sense they are a kind of slow motion improvisation, in the time of painting which is, of course, different. The adjustment always occurs much more on the color and value, and on the contours: the game of focusing and unfocusing, creating ambiguity, reiterations, and so on.

Mauricio Piza, Variação sobre uma Bananeira, 2014, em processo, 1,50 X 2,00 m

Mauricio Piza, Variation on a Banana Tree, in process, 1,50 x 2,00 m

As Juan Gris used to say: “Until the work is completed he [the painter] must remain ignorant of its appearance as a whole”.

This tension between method and improvisation is something that interests me greatly.

Jive on!