I settled in to adding on to a project that sought to convert a decomissioned Flash "application" over to HTML5. I decompile the swf files and dig in. I bust the door open like the Kool-Aid man and there are thirsty kids in that flv file. So anyway, I check the ActionScript code out and it is an unmanagable nightmare. I don't know whether it was the decompiling or just that the code was originally bad, but I couldn't make heads or tails of it.
So I honestly have no idea how he coded the color choosing algorithm. But it seemed to be using a code where White was equal to 16777215. After some Googling, I learned that this color format hasn't been used since like... VB 5. Lots of old VB forum posts talking about this OLE coloring scheme. Only two or three posts I found could even explain how it's generated. But it's generated through taking the red value between 0 and 255, adding it to green value between 0 and 255 multiplied by 256, then the blue value between 0 and 255 multiplied by 256 twice.