Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Chromatic Strength of Colors: Dominant Wavelength and Purity

Not Accessible

Your library or personal account may give you access

Abstract

A new visual threshold lying between the colors that appear to contain gray and those that appear fluorescent has been determined as a function of dominant wavelength at high purity on a white (7000 K) background. The function is found to be an approximately constant multiple of the previously known purity threshold; it is independent of purity and hence is named chromatic threshold. The value of the function for any given chromaticity is shown to be a measure of its chromatic strength in (a) neutralizing its complementary color, (b) producing Munsell Chroma. It is considered also in terms of the Hering–Johansson “Natural Color System,” where it appears to specify the “clear” series, and in terms of the Ostwald System.

© 1967 Optical Society of America

Full Article  |  PDF Article
More Like This
Chromatic Strengths of Colors, Part II. The Munsell System

Ralph M. Evans and Bonnie K. Swenholt
J. Opt. Soc. Am. 58(4) 580-584 (1968)

Chromatic Strength of Colors, III. Chromatic Surrounds and Discussion

Ralph M. Evans and Bonnie K. Swenholt
J. Opt. Soc. Am. 59(5) 628-634 (1969)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved