It's a cute idea... But ultimately I don't like it. First color I tried was 632 and it looked way way too orange. I know the color science and the gamut considerations and the dominant wavelength considerations, but it just doesn't seem to make a very good representation when it comes down to it. There's ways to perceptually change the gamut to make it look better, but this is one of those things where you just need a grating and a tungsten lamp