efa2a474ea
This adds an HSLColor class which uses a perceptual color space based upon human perception of colored light (as opposed to HSV, which is based on pigment colors). You can see the difference in the color spaces here: https://en.wikipedia.org/wiki/HSL_and_HSV I also added a "within" matcher for both HSLColor and HSVColor that will check if the (floating point) color components are within a certain error. And tests.