I am using the following basic RGB color scheme for my website:







I would like to extend the pallette, but not in a random way. I would like to apply known theories of how that is systematically done.

Can someone refer me to reading on the subject, or perhaps even better, places on the net that allows me to enter the base colors and receive suggestions on extentions.

  • Do you want colors or numbers?
    – user120647
    Aug 3, 2018 at 12:25
  • @Danielillo ideally RGB numbers.
    – user120911
    Aug 3, 2018 at 12:27
  • Hi user120911, welcome to GD.SE and thanks for your question. I downvoted your post because I think you need to give us some more information. What is the palette used for? A website? An e-book? Pixel art? All of those would ask for wildly different answers. Please edit your question to give us some more information about the use case, and you might get some good, usable asnwers. Thanks!
    – Vincent
    Aug 3, 2018 at 12:33
  • If you have any questions about this site or the Stack Exchange model in general, have a look at the help center or the tour respectively. They will get you up to speed about how this site works and what is on and off topic. Keep contributing and enjoy learning from and with us all!
    – Vincent
    Aug 3, 2018 at 12:34
  • 2
    Besides, would it be possible for you to post an image of your palette? I am a visual kind of person and I cannot judge how colours look just by looking at numbers. I would be surprised if I were the only one here. Thanks! :)
    – Vincent
    Aug 3, 2018 at 12:35

1 Answer 1


Not sure why you need 6 colors, I think anything over 2-3 is too many, but assuming you have your reasons, look at Kuler's existing color sets. This should be more than enough to get some useful ideas. There are also alot of similar questions here which you can go through, see the 'Related' tab on the right.

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