Color Coding - A Review of the Literature.
Final technical note,
HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD
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This literature review has investigated the use of color as a coding technique. Attention was concentrated primarily on the factors directly applicable to visual displays--such as hue, alphabet size, and the general advantages and disadvantages of color codes. The average alphabet size ranges from 8 to 11 hues three to five for cathode-ray tubes. Color coding is found lacking when operators must make quick, precise identifications. However, color codes are advantageous in highlighting location or for gaining attention. Color also improves human performance when used in conjunction with other coding methods.
- Human Factors Engineering and Man Machine Systems