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See also: Final Rule published to the Federal Register 1/18/17 that jointly updates requirements for ICT covered by Section 508 of the Rehabilitation Act and Section 255 of the Communication Act.

Paragraph (c)

Operable with Little or No Color Perception

1. Many people are unable to distinguish between certain color combinations. Others are unable to see color at all.

2. Strategies for addressing this provision include:

a. Eliminate the need for a person see color to operate the product. This does not eliminate the use of color completely but rather requires that any information essential to the operation of a product also be conveyed in some other fashion.

b. Avoid color pairs such as red/green and blue/yellow, that are indistinguishable by people with limited color perception.

c. Provide colors with different hues and intensity so that colored objects can be distinguished even on a black and white screen by their different appearance. Depending upon the product, the manufacturer may also be able to allow users to adjust colors to match their preferences and visual abilities.

d. Avoid colors with a low luminance.

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