# Thread: Colors

1. ## Colors

How to create Color shades.

For example if red color means I have to reduce the intensity gradually and i have to create minimum 5 shade colors of red.

Anyone help me How to do color shades, any algorithm is there?

2. Originally Posted by kumar
How to create Color shades.

For example if red color means I have to reduce the intensity gradually and i have to create minimum 5 shade colors of red.

Anyone help me How to do color shades, any algorithm is there?
Not very clear, please clarify what you want to ask.

You could start by saying how you are representing colour (probably 24 bit, 8 bits per channel for RGB, but if you do not say so we are only guessing).

How about:

$\alpha [255,0,0] + (1-\alpha) [255,255,255]\ : \ \alpha \in [0,1]$

rounded to the nearest integers in $[0,255]$

CB

3. Thanks for your reply.

I dont know whether ie. 24bit or 8bit, Because I dont know more about colors.
I didn't understand that formula. how to apply that formula. please explain.
Red means 255, 0, 0 what I have to do with alpha value.

4. 256= 2^8
so 0 to 255 is 8 bits or one byte.

In any case, 255/5= 51 so a loop such as i= 0 to 4, step 51 to get 0, 51, 102, 153, 204, 255 will work.