Quoted from SantaEatsCheese:Okay... got 5 more blues and some gloss sealer over lunch. Hopefully one of these with a little blue or white in it will make it right. I don't really understand how it will make a difference, but that's why I'm asked you guys.[quoted image]
Mixing the blues together to get closer to the blue you want is the best bet.
While the theory that adding white will lighten and adding black will darken sounds solid it doesn’t actually work that way on many colors.
As a painter we would tint with similar colors to get the desired shades. So on a blue if you want to darken add a darker blue. If it needs to be more purple add some red.Greener add a little yellow and on and on.
There is an art to it that is hard to convey but don’t get lost in the simplicity of black and white.