The best alternatives to Coleure are Swatches, Bjango, and Color Copy Paste. If these 3 options don't work for you, we've listed a few more alternatives below.
Color Copy Paste is plugin that allows you to copy & paste colour directly from your phone's camera to your web browser, figma or sketch plugin. You can manage the colours with no hassle. No more manually taking picture and use color picker to get the color.
Select your favorite color from a various colors suggestions including red, purple, blue, green, yellow, orange and grey. Easy copy and paste your color from RGB, RGBA, HEX, CMYK, HSLA color format.