Toucan Colorizer - create systematic color palettes

Insert your colors in hex and then adjust

It maps your color to closest Luv value from pre-defined gray palette created and tweaked specially for human eye by IBM, which results in color palette with unified contrasts across same Luv values. You can insert max 8 colors. Just insert your starting hex colors and tweak them as you like. Default variables in export are pre-defined to the shade 400, later there will be option to select it manually.