#B31100 Hex Color
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Dark and highly saturated, #b31100 has warm red undertones and a forceful, urgent presence. It suits calls to action, sports branding, sale graphics, and emergency-focused interfaces where attention matters. Use it as a small accent against charcoal or cream rather than a full-page background. The hex code #b31100 supports clear white text at about a 7.0:1 contrast ratio.
Questions about #b31100
What is #b31100 in RGB, HSL and CMYK?
In RGB, #b31100 is rgb(179, 17, 0), in HSL hsl(6, 100%, 35%) and in CMYK 0%, 91%, 100%, 30%.
What colors pair well with #b31100?
It pairs well with cream and charcoal, which soften or ground its intense warmth, while muted sage or navy can create controlled contrast. Keep #b31100 as an accent when the palette needs restraint.
Is #b31100 a warm or cool red?
#b31100 reads as a warm red because its strong red base leans toward orange rather than blue. Its high saturation gives it an assertive, urgent mood, making it suited to calls to action, promotions, sports graphics, and warning-focused interface accents.
Is #b31100 readable on white or black?
#b31100 has a 7.00:1 contrast ratio on white and 2.99:1 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.