I came up with stupid solution but it worked so I don't think it was that stupid. Well over decade ago I was working for tiny digital/advertisement agency. I was website dev/guy dealing with whole IT and next to me was working a graphic designer. Every once in a while some customer was asking to make graphics with specific colors that we couldn't figure out how those would work together. Instead of trying different hues that would work together I came up with idea of simply googling those colors and adding "logo" on the end. Without a fail we was always able to find something that worked good enough to not make you blind. No theory, no advanced methodology just couple of guys, fresh out of school figuring stuff out as best as we could