Some years ago I was at a convention and picked up a card with Shade & Highlight info. Unfortunately, it is torn and I do not have the bottom half. Most of the info is still readable:
Key: Base Color – (Paint Wash) or [Ink Wash] – Highlight
White – (Grey or Lt. Blue) or [Diluted Dk. Blue] – White
Black – (none) or [none] – Dark Grey
Red – (Red/Brown) or [Dk. Brown] – Red/Yellow
Yellow – (Yellow/Brown) or [Dk. Brown] – Yellow/White
Blue – (Blue/Black) or [Dk. Blue] – Blue/White
Orange – (Orange/Brown) or [Dk. Brown] – Orange/Yellow
Green – (Green/Black) or [Dk. Green] – Green/Yellow
Purple – (Purple/Black) or [Purple] – Purple/White
Grey – (Black) or [Black] – Grey/White
A tip of the hat to whomever printed this and my apologies for not remembering who you are.