#EF3340 Hex Color
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This saturated, high-intensity red demands immediate attention. Because of its extreme brightness, #ef3340 works best as a 10% accent color rather than a dominant background. Pair it with charcoal or deep navy to ground its visual loudness. The hex code #ef3340 also offers enough contrast to support small black text, making it a functional choice for high-stakes calls to action or urgent UI notifications.
Questions about #ef3340
What is #ef3340 in RGB, HSL and CMYK?
In RGB, #ef3340 is rgb(239, 51, 64), in HSL hsl(356, 85%, 57%) and in CMYK 0%, 79%, 73%, 6%.
How should I use #ef3340 in my UI design?
#ef3340 is visually intense and works best as a 10% accent color rather than a dominant background. Use it sparingly for critical alerts, error states, or urgent call-to-action buttons to ensure it creates impact without overwhelming the user interface.
Which colors pair well with #ef3340?
Is #ef3340 readable on white or black?
#ef3340 has a 4.02:1 contrast ratio on white and 5.21:1 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.