Blue-Yellow

An Opponent Channel as well as a category of CVD where that opponent channel is affected. This includes Tritan defects as well as the hypothetical Tetartan defects.

The Blue-Yellow opponent channel is a reformulation of the Tristimulus values (LMS), which is a balance between the S-Cone (Blue) and the sum of the M- and L-Cones (which average to Yellow).

See also Red-Green.