I recently wrote my first WordPress plugin, Swatchify, which takes the featured image from a post and generates a color palette from it. As part of this process I ran the plugin against all of the posts in my archive.

The result of this process is that all of my posts are now grouped by colors, hex codes, and dominant colors.

Whenever Swatchify runs it takes the palette generated and associates the post with the color taxonomies I programmed into it.