Recommendation: Although ADAAG does not specify values for light-on-dark or dark-on-light contrast, a minimum 70% light reflectance contrast is recommended....
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Contrast
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11B-703.7.2.6.3 Unisex toilet and bathing facilities
The triangle symbol shall contrast with the circle symbol, either light on a dark background or dark on a light background....
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Finish and Contrast [4.30.5]
Consideration should also be given to light sources and the ambient lighting to prevent glare on sign surfaces....
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A4.1.3(19)(a)
For example, a marker which contrasts (light on dark or dark on light) and which also reflects light could be placed on the side of such seating so as to be visible in a lighted auditorium...
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References
“Research on Effective Use of Tactile Exhibits with Touch Activated Audio Description for the Blind and Low Vision Audience.”...
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705.1.3 Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light....
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705.1.3 Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light....
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4.30.3* COLOR CONTRAST
Characters and symbols shall contrast with their background - either light characters on a dark background or dark characters on a light background....
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Tread Surface: ADA Standard Section 504.4
Section 504.4 covers the current ADA Standards for the tread surfaces on stairways.
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§ 38.119(b)
(b) The doorways of cars not operating at lighted station platforms shall have outside lights which, when the door is open, provide at least 1 foot-candle of illumination on the station...
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§ 38.81(c)
(c) The doorways of vehicles not operating at lighted station platforms shall have outside lights which provide at least 1 foot-candle of illumination on the station platform or street surface...
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R210 Protruding Objects
Protruding objects can be hazardous for pedestrians, especially pedestrians who are blind or have low vision....
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Official Definitions
Okay, the official definition of low vision usually goes hand-in-hand with blindness, and low vision and blindness are often in the same sentence....
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11B-411.4.11.2 Contrast
Visual display shall provide contrast with light characters on a dark background or dark characters on a light background. The background shall be solid and static....
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11B-411.4.11.2 Contrast
Visual display shall provide contrast with light characters on a dark background or dark characters on a light background. The background shall be solid and static....
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11B-411.4.11.2 Contrast
Visual display shall provide contrast with light characters on a dark background or dark characters on a light background. The background shall be solid and static....
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General: ADA Standard Section 205.1
Section 205.1 of the ADA Standards covers information on scoping requirements for operable parts in the most current ADA Standards.
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Conventions Used In This Guide
When text taken from CBC or ADA is included in these boxes, the aforementioned text color/style conventions are used Black Text within single-outlined Box with light...
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11B-411.2.1.2.4.1 Contrast
Display screens shall provide contrast with light characters and symbols on a dark background or dark characters and symbols on a light background....
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11B-411.2.1.2.4.1 Contrast
Display screens shall provide contrast with light characters and symbols on a dark background or dark characters and symbols on a light background....
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11B-411.2.1.2.4.1 Contrast
Display screens shall provide contrast with light characters and symbols on a dark background or dark characters and symbols on a light background....
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ClickAndGo Navigation Wayfinding Technology
Customized Narrative Walking Directions ClickAndGo Navigation is a patented wayfinding technology for blind, low-vision and mobility-challenged pedestrians....
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Emergency Preparedness
Plans should also include people who use oxygen or respirators, people who are blind or who have low vision, people who are deaf or hard of hearing, people who have a cognitive disability...
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11B-703.7.2.6.3 Unisex toilet and bathing facilities
The triangle symbol shall contrast with the circle symbol, either light on a dark background or dark on a light background....
