#F23311 Hex Color
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This saturated, high-energy red demands immediate attention. Because #f23311 is so loud and aggressive, it works best as a 10% accent rather than a dominant background. It pairs surprisingly well with deep charcoal or slate greys for a modern look. While black text is legible against it for accessibility, use this hex code sparingly to avoid overwhelming your UI design.
Questions about #f23311
What is #f23311 in RGB, HSL and CMYK?
In RGB, #f23311 is rgb(242, 51, 17), in HSL hsl(9, 90%, 51%) and in CMYK 0%, 79%, 93%, 5%.
How should I use #f23311 in a user interface?
Because #f23311 is visually intense and loud, it is most effective as a strategic accent color for call-to-action buttons or notifications. Avoid using it as a large background, as it will quickly overwhelm users and fatigue the eye during extended sessions.
What colors pair best with #f23311 for a modern palette?
Is #f23311 readable on white or black?
#f23311 has a 3.99:1 contrast ratio on white and 5.25:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.