Hi,

I often use boxes which use 3 colours. They have a base color, which can be anything, preferably quite bright, and fairly colourful.

This is the first colour of the gradient that fills the box. Then second colour is slightly darker, and slightly more saturated. The third colour is further darkened, and further saturated.

My question is, how could I make these 3 colours (assuming the user selects the 'base colour') themselves. I have an image to help anyone visualise this. Any help/discussion really appreciated!



(in case that doesn't show up, http://djave.co.uk/images/hosted/colormanipulation.jpg)