Cookbook
Design
Stable
Color, Icons, and Contrast
How to spend color and icons so a screen tells the eye where to look — grey by default, one meaning per color, status color in text/badges vs entity color in chart marks, never color alone, and the WCAG contrast floors including the 3:1 rule for chart bars.
Related
Cookbook
Progressive Disclosure for Dense Detail Pages
Run that guide FIRST — it decides WHAT goes on the screen and at which layer. This guide decides how the survivors look.
Cookbook
Choosing the Right Chart
The third guide in the family — which chart answers which question. It defers to this guide for palettes and contrast.