Consistency between Response curves and color mixing

nConsider matching 490-nm spectral cyan which excites the S and I-cones equally and a little bit of L-cones. nUse 460-nm blue and 530-nm green and 650-nm red to match cyan. The blue and green must be roughly the same amount. However, this mixture excite the L-cones too much, we need anti-red to de-excite the L-cones. nThe information contained in the chromaticity diagram is consistent with that of the response curves.