What Colour is FREEWARE. Registration is optional. The program will continue working if you don’t register, and there won’t be any nag messages or advertisements!

However, if you find What Colour useful, want to contribute to its success, or use it commercially, please consider registering (it's only ten dollars!).

 

For non-credit card payments.

Use this for credit card payments.  The oldest online software store in the world. SWREG®, in existence since 1987, is a valuable service that was created to provide software and shareware authors the most convenient means possible of selling their products online. SWREG® is the most advanced secure payment registration site on the web today with annual sales at the $55m mark and is very easy to use.