In the 1940's the color science community recognized that the most visually-uniform color space to date, the Munsell Color Order System, had inconsistencies that required examination and remedy.

Albert H. Munsell The Munsell Color Science Laboratory (MCSL) can be traced back through the Munsell Color Foundation, and further back to that Foundation's start with the Munsell Color Company. The ...

Finding the tetrachromat color space. Thread starter ... the additional 30 hue slots would be used to differentiate in the area they should see as a gap in the original Munsell test. <BR><BR ...

The size of a color sample, the lighting in which you view it, and the nearby colors of other walls and objects all have an effect on how a color appears.