I'm using PHP and I would like to create an array with colour codes. My base colour's hex code is #16A7B4 (red 180, green 22, and blue 111). I want all colours to be as dark as the base color #16A7B4, but other colours must be different enough that I can see that there are several colours. In other words, it is not allowed that the colours look too similar.
In other words, colours like #164EB4 and #38B416 would be OK, because they are not too similar with #16A7B4. But colour #B41668 is too similar with the base colour.
My problem is that I have no idea how to do this. I can add the base colour to an array, but that is all I can do. I do not know how I could calcute more colour codes which are as dark as the base color but not too similar with it.
I need 100 different colour codes (RGB or hex). Any ideas?