#A31621 Hex Color
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A saturated, dark red with warm, wine-like depth. #a31621 reads bold at any size, though full-bleed backgrounds can feel heavy, so it earns its keep as a sharp accent or small blocking. White type sits comfortably on it at roughly 7.8:1 contrast, well past AA for body text. It looks richer against blush or olive than against plain white.
Questions about #a31621
What is #a31621 in RGB, HSL and CMYK?
In RGB, #a31621 is rgb(163, 22, 33), in HSL hsl(355, 76%, 36%) and in CMYK 0%, 87%, 80%, 36%.
What colors pair well with #a31621?
Blush pink and olive soften its intensity, while mustard adds a warm contrast. For a moodier palette, try it beside charcoal or deep navy instead of plain white.
Is #a31621 readable on white or black?
#a31621 has a 7.79:1 contrast ratio on white and 2.69:1 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.