Zusammenfassung der Ressource
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A yellow foreground (text) on a red background separates the areas and provides a contrast in brightness, making a sign more legible. This color combination is always accessible.
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"Hue" is the lightness or darkness of a color.
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Avoid red and black color combinations whenever possible.
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Usually, if something is legible in grayscale, then a color-blind person can view the information.
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Everyone loves Christmas! Use Christmas colors, red and green, whenever possible.
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White on black is readable in large font only.
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Blue on white is accessible only in large text.
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This statement is correct: Place an "X" inside of the yellow box.
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Black and yellow is another combination which usually has a high contrast. Use this combination frequently.
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Orange should be used ONLY with large text and as a highlight.
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Bright colors such as magenta text on a blue background help people with color vision to read.
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Because orange is neither very dark nor very light, it is easy on the eyes and transfers to grayscale well.
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Red and white is indistinguishable from black and white.
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When we talk about contrast ratio we are referring to the difference in value.
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Reduce the afterimage effect from brightly colored hues, such as bright blue on pale pink, by making one of the colors a pastel or dark shade.