https://hexcolor.co/image-to-colors
https://subcolor.github.io/
https://www.happyhues.co/
https://geenes.app/
https://maketintsandshades.com/
https://refactoringui.com/previews/building-your-color-palette/?ref=webdesignernews.com
http://colormind.io/
http://colorhunt.co/
http://www.vanschneider.com/colors/
