Left, you can see the results of standard RGB color mixing, while to the right, you can see the results of the K-M method. The latter is far more representative of how paint mixes in real life.

The major difference is that in a RGB color space, all the colors information are resulted from the mixing of red, green, and blue ... After you add the Hue/Saturation as an adjustment layer you can ...

Following are the conversion formulas from RGB to YUV and from YUV to RGB. See YUV and color space conversion. From RGB to YUV Y = 0.299R + 0.587G + 0.114B U = 0.492 (B-Y) V = 0.877 (R-Y ...