So this is where things got a little trickier for me decision wise. Cap seems like an obvious choice for 'blue' which originally he was going to be, but in the end it made more sense to place him here in 'cyan' Hopefully when i post blue in a day or two you'll agree.
I had also considered leaving cyan out all together, but decided more color stops along the spectrum would be cooler.
Cap also stands out more simply because of the lack of 'cyan' in his outfit and most colors in his costume are much darker than the background.
Not my favorite of the series, but over all I'm happy with how he turned out.