The Gamut Mask Tool

September 27, 2018
By Richard Robinson
The Gamut Mask Tool logo

FREE Interactive color harmony tool for painters and visual artists

(My apologies that this tool doesn't squeeze down to fit in smaller screens!)

What is it?

The Gamut Mask is a great way to created harmonic colour schemes. It simplifies your colour choices and saves you lots of time and paint in achieving unified colour palettes quickly and easily.

Who made it?

This Gamut Mask Tool was developed by me (Richard Robinson) and is provided to you free to use. The original concept of the Gamut Mask was developed by artist James Gurney.

How do I use it?

Below are some samples of harmonic colour schemes achieved by using the Gamut Mask.

First I designed an image with a limited value study. Then I decided my most powerful colour would be the orange in the foreground and I made a triangular mask with yellow orange as the dominant colour, supported by a greyed red and a greyed green.

I could have mixed intermediary colours located midway along the sides of the triangle, but I decided to keep it simple and mixed just three colour strings of five values each.

Then I removed all other colours from my palette so I wouldn’t be tempted to dip into them, and painted the first little study (just 2.5″ wide). Satisfied with that, I made two more studies, and you can see what different colour schemes were achieved by the different gamut masks. Each painting is harmonious, yet each has a slightly different mood.

Download the printable Gamut Mask Tool here!

Where can I learn more? 

Learn more about color in my  
Mastering Color Video course >> 

Moochie Shannon 06/03/2019 Wonderful! Thank you.