#138AF9 Hex Color
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This electric blue is highly saturated and demands immediate attention. Because it is so vivid, #138af9 works best as a 10% accent color for buttons or highlights rather than a full page background. The hex code provides 6.0:1 contrast against black text, making it a reliable choice for readable UI. Designers often pair it with similar blue shades to build depth in digital products.
Questions about #138af9
What is #138af9 in RGB, HSL and CMYK?
In RGB, #138af9 is rgb(19, 138, 249), in HSL hsl(209, 95%, 53%) and in CMYK 92%, 45%, 0%, 2%.
What colors pair well with #138af9?
Pair #138af9 with charcoal or deep navy for a grounded, professional look that balances the high energy of the blue. For a more modern, energetic interface, use it alongside crisp white or soft gray tones.
Is #138af9 readable on white or black?
#138af9 has a 3.48:1 contrast ratio on white and 6.03:1 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.