Abstract

An extension of the ISCC-NBS (Inter-Society Color Council—National Bureau of Standards) system of color names for the description of the colors of drugs and medicines, has been made for describing the colors of lights. The color names consist of hue names such as red, pink, yellowish green, or purple without further modifiers since they are intended to differentiate lights chiefly according to hue. The hue names are among those used in the ISCC-NBS system and carry the same meaning. The chromaticity ranges identified by each of these hue names are defined by areas on the ICI chromaticity diagram. Comparisons are made between the centers of the proposed hue-name ranges and similar values by other authorities, and with the standard colors recognized in various specifications for marine, railway, aviation, and traffic signal colors.

© 1943 Optical Society of America

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References

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  1. Figures in parentheses indicate the literature references at the end of this paper.
  2. Deane B. Judd, National Bureau of Standards, Washington, D. C.
  3. The points so determined and the lines connecting them have been accepted by the O.S.A. subcommittee and are included in their final report (4).

Judd, Deane B.

Deane B. Judd, National Bureau of Standards, Washington, D. C.

Other (3)

Figures in parentheses indicate the literature references at the end of this paper.

Deane B. Judd, National Bureau of Standards, Washington, D. C.

The points so determined and the lines connecting them have been accepted by the O.S.A. subcommittee and are included in their final report (4).

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Figures (1)

Fig. 1
Fig. 1

Suggested definitions of color designations for self-luminous sources. The chromaticities for each designation are indicated on the chromaticity diagram of the standard ICI coordinate system for colorimetry (10). Spectrum chromaticities are also shown, the wave-lengths being indicated in millimicrons.

Tables (2)

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Table I Dominant wave-lengths corresponding to various hues.

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Table II Comparison of formal color specifications with the proposed color names.