#AA0021 Hex Color

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Hex color #aa0021 graphic
#aa0021 is a high-intensity red that commands immediate attention. Because of its saturated, bold character, it functions best as a striking accent rather than a full background. This shade pairs well with slate grays or deep charcoals to temper its natural ferocity. With a strong contrast ratio of 7.7:1 against white, it remains highly legible for UI elements and call-to-action buttons.

Questions about #aa0021

What is #aa0021 in RGB, HSL and CMYK?
In RGB, #aa0021 is rgb(170, 0, 33), in HSL hsl(348, 100%, 33%) and in CMYK 0%, 100%, 81%, 33%.
What color schemes work well with #aa0021?
To balance the high intensity of #aa0021, pair it with neutral charcoal or slate grays to ground the visual weight. Using a complementary blue-green or a muted mustard creates a sophisticated, high-contrast dynamic that keeps your design balanced.
Is #aa0021 readable on white or black?
#aa0021 has a 7.68:1 contrast ratio on white and 2.73:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.