#251BB5 Hex Color
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#251bb5 is a dark indigo that sits between navy and violet. Its low lightness gives it a moody, after-dark feel, and it works best as a dominant base in dark interfaces or as a brand anchor color. White text reaches about 11:1 contrast on it, so small body copy stays readable. Pair it with warm amber to keep it from reading flat.
Questions about #251bb5
What is #251bb5 in RGB, HSL and CMYK?
In RGB, #251bb5 is rgb(37, 27, 181), in HSL hsl(244, 74%, 41%) and in CMYK 80%, 85%, 0%, 29%.
What colors pair well with #251bb5?
Is #251bb5 readable on white or black?
#251bb5 has a 11.03:1 contrast ratio on white and 1.90:1 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.