Relations between RGB and CMYK Colors.

Hi all, I am back after a week. I was little busy....Last day someone ask me about the relationship between RGB and CMYK colors (if any??!!). Here we go...

At first I should tell you RGB & CMYK are just the different color space. So some of the color of RGB might not show accurate in CMYK color space. But as the rule of thumb the theory of color just rock.

I think you have read my first post i.e. Understanding RGB and CMYK Color Spaces in short. It will help you to understand. So, RGB color space is consisting of three primary colors. R stands for RED, G stands for Green and B stands for Blue and CMYK color space has four primary colors. C for Cyan, M for Magenta, Y for Yellow and K for Black.

We should leave the K, so we got C-M-Y, so as I have discussed earlier...

C is the inverted color of R C <> R
M is the inverted color of G M <> G
Y is the inverted color of B Y <> B

Now, if we add C, M, Y colors with each other then we will get...
C + M = Blue (B)
C + Y = Green (G)
M + Y = Red (R)
So, reproduced colors are R, G, B.

Again, if we do it with R, G, B colors.
R + G = Yellow (Y)
R + B = Magenta (M)
G + B = Cyan (C)
In that case we are getting C, M, Y, colors.

So, from there we got two theories for all the colors, like...
C <> R, and C = G + B
M <> G, and M = R + B
Y <> B, and Y = R + G

And Oh, any combination of inverse color will produce black.

So, what is the point? If we can remember those relations then it does'nt matter in which color space you are working on, you can always change any color either you are in RGB colors space and you want to adjust the C or in CMYK color space you want to change the Red color.

In CMYK color space we can change the Red color by adjusting both M and Y color, But if we just drop the the curve of Cyan then it will levitate the intensity of Red (direct access to the Red color) also.

What I am trying is to express you the relationship between those different colors space and what I have explained on color corrections, has some pros and cons. But in my experience I got some events when this relationship helped me to command over the colors.

If you have any questions or quarry you can mail me on kamal4webdesign@gmail.com.