Adding depth to a painting
Saturated (full strength) colours will advance visually in a painting. A strong red, for example, will look a lot closer than a pink. 'Warm' colours such as red, yellow and orange will seem to be closer than the 'cooler' blues and greens.
Blue, in particular will appear further away as our eyes actually change their focus slightly when we look at blue. At distance all colours become bluer, lighter and greyer. Used with knowledge, colour alone can bring great depth to a painting.
The sharpness of detail can also play a vital part. Look at your thumb at arms length. Notice how sharp it appears when contrasted with the background. By deliberately sharpening detail in the closer areas of a painting, great depth can be added with ease.
Taken from "Colour harmony and contrast for the artist". |