I have an image with green background, lets say #5F7642.
I need to add small text in red color over that background. The problem is, usual red colors pretty much fade in with the background. I need some version of red, which will stand out as much as possible.
Is there some better way than just trial and error to find such color? Is there some formula I could use, to compute the red color, which is as much different from #5F7642, as possible?