ColorBrewer is a web tool for selecting color schemes for thematic maps, most usually for choropleth maps. It includes 35 basic schemes with different numbers of classes for over 250 possible versions. Each scheme has CMYK, RGB, Hex, Lab, and AV3 (HSV) specs for the colors. The software is designed simply to list color specs for a scheme you find useful so you are able to create these colors in the mapping software you are using.
Paletton (a.k.a. Color Scheme Designer 4) presents the user with a color wheel and several color scheme styles:
- Free style
By moving arrows around the color wheel, users can look at and compare different color palettes suitable for web design, logos, etc. A preview option is available for checking what the color scheme would look like as part of a light or dark website.