The lessons from scratchapixel.com were for me the most helpful, they really made all the stuff about colour-spaces "click" for the first time. Mainly this chap

The lessons from scratchapixel.com were for me the most helpful, they really made all the stuff about colour-spaces "click" for the first time. Mainly this chapter, explaining about the tristimulus, CIExyz and how they transform into sRGB and what is up with that horseshoe shape: http://www.scratchapixel.com/lessons/3d-basic-lessons/lesson-5-colors-and-digital-images/ http://www.scratchapixel.com/lessons/3d-basic-lessons/lesson... Further, if you click around there's a few more chapters relevant to colours that put this theory into practice (in the context of raytracing and rendering): http://www.scratchapixel.com/lessons/3d-advanced-lessons/blackbody/spectrum-of-blackbodies/ http://www.scratchapixel.com/lessons/3d-advanced-lessons/bla... http://www.scratchapixel.com/lessons/3d-advanced-lessons/simulating-the-colors-of-the-sky/atmospheric-scattering/ http://www.scratchapixel.com/lessons/3d-advanced-lessons/sim...