Guides

Limited palettes and colour problems explained with numbers: mixing tables, values and curves computed by the Mestor engine.

Zorn palette: mixing ratios for ochre, vermilion, black and whiteThe palette attributed to Anders Zorn, with the ratios of its main mixes, the value of each and why black stands in for blue.
Three-primary palette: lemon yellow, alizarin lake, ultramarine and whiteWhat three oil primaries really give: ratios for the secondaries, why purples stay dark without white and how much chroma they lose.
Why does my green turn muddy? Blue and yellow explained with numbersWhich yellow and which blue give the cleanest green, why an RGB average gets it wrong, and how little red it takes to kill a green.
Chalky tints: why white dulls and cools your coloursWhat happens to chroma and hue as you lighten with white, step by step, and how it changes with different whites.