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The level aa requires a contrast ratio of at least 4.5:1 for normal. Aa (minimum contrast) and aaa (enhanced contrast). Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.
At The Emmys, Bold Colors Ruled The Red Carpet
Palette visualizer preview your colors on real designs for a better visual understanding. Instantly generate beautiful palettes by hitting the spacebar, or explore millions of popular ones. Regarding colors, the standard defines two levels of contrast ratio:
Extract colors from images, check accessibility, and preview them on real designs.
They are very versatile, and work best with one dominant color.
