Question

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Color Interpolation Between 3 Colors in .NET

I have been trying to get a categories list of colors using C#:

Red:
255, 69, 0
255, 99, 71
etc.. 

Green:
0, 250, 154
143, 188, 139
etc...

So far I have been pretty unsuccessful. Ideally, what I’d like is a way to supply two HEX refs or RGB refs and get a list back of say 10 colors between those two references. Is this possible in C#?

EDIT

Found this… http://meyerweb.com/eric/tools/color-blend/ just converting the js to c# now. Will post when its done.

Answer 1

I am not aware of built-in function which would help you, but you can do it yourself.

As long as color can be defined using 3 numbers (R,G,B), you can take two colors:

(R1,G1,B1)
(R2,G2,B2)

Then divide diff between pairs and produce numbers by intervals.

int numberOfIntervals = 10; //or change to whatever you want.
var interval_R = (R2 - R1) / numberOfIntervals;
var interval_G = (G2 - G1) / numberOfIntervals;
var interval_B = (B2 - B1) / numberOfIntervals;

var current_R = R1;
var current_G = G1;
var current_B = B1;

for (var i = 0; i <= numberOfIntervals; i++)
{
    var color = Color.FromRGB(current_R, current_G, current_B);
    //do something with color.

    //increment.
    current_R += interval_R;
    current_G += interval_G;
    current_B += interval_B;
}

I haven’t compiled the code, but you get the idea.