#0A121B Hex Color
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#0a121b is a dark blue that sits close to black, with ashy, sooty undertones and almost no visible saturation. That low lightness gives it a somber, controlled feel, which suits dark mode interfaces, finance, and security branding. Pair it with warm amber to keep it from reading flat. White text on #0a121b reaches about 18.8:1 contrast, well past the 4.5:1 WCAG AA needs, so body copy stays readable.
Questions about #0a121b
What is #0a121b in RGB, HSL and CMYK?
In RGB, #0a121b is rgb(10, 18, 27), in HSL hsl(212, 46%, 7%) and in CMYK 63%, 33%, 0%, 89%.
What colors pair well with #0a121b?
Warm accents like amber, soft gold, and muted terracotta work best against #0a121b, since they counter its ashy coolness. Cool grays and slate blues tend to blend in, so use them sparingly.
Is #0a121b readable on white or black?
#0a121b has a 18.82:1 contrast ratio on white and 1.11:1 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.