The Color Wheel Company

A tool that maps out values from Value 1 (100% Black) to Value 10 (100% White). Instructions for use help you identify the value of individual hues, raise or lighten the value of a hue, and lower or deepen the value of a hue. It measures 4″ × 6″.

A handy tool that lets you isolate your subject matter and artwork to make better decisions about composition, value judgment, and true colour.