#3979E0 Hex Color
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#3979e0 is a saturated, bright blue with a cool, clear character and strong visual energy. Its vivid intensity suits calls to action, technology interfaces, finance, healthcare, and security-focused branding. Use it as a focused accent or supporting tone rather than a full-page background. The hex code #3979e0 also supports readable black text at about 5.0:1 contrast.
Questions about #3979e0
What is #3979e0 in RGB, HSL and CMYK?
In RGB, #3979e0 is rgb(57, 121, 224), in HSL hsl(217, 73%, 55%) and in CMYK 75%, 46%, 0%, 12%.
What colors pair well with #3979e0?
#3979e0 pairs well with charcoal for a grounded interface, while terracotta adds warm contrast without competing with its strong blue intensity. Use off-white surfaces to soften the overall palette and preserve its clear, energetic character.
Is #3979e0 readable on white or black?
#3979e0 has a 4.21:1 contrast ratio on white and 4.98:1 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.