Color chart

The industry standard for these cards in North American photography labs in the 1940s and 1950s depicted a solitary "Caucasian" female dressed in brightly colored clothes.

Stock color film chemistry for still cameras was designed originally with a positive bias toward "Caucasian" skin tones because of its high level of reflectivity.

This card showed three women (Caucasian, Asian, African) with different skin colors and brightly contrasted clothing.

Color charts can take custom forms, as for example the calibration target used by the Curiosity rover for its Mars Hand Lens Imager (MAHLI).

The European Pharmacopoeia monograph 2.2.2 is a method to determine the degree of coloration in liquids, applied to pharmacological compounds, drug substances and finished product.

Due to the development of the paint and ink industry, the requirement for this kind of chart intensified, and a number of systems are now available, including:

An IT8.7 Target by LaserSoft Imaging used for color management of digital cameras or scanners.
Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects
ColorChecker Color Rendition Chart
An IT8 color target made in EGM Laboratories in Barcelona, Spain. It has a very big gamut , slightly bigger than the ProPhoto color space .
Pier Andrea Saccardo's chromotaxy scale
Calibration target on the Mars Curiosity rover
An RAL colour fan