#818FD5 Hex Color
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Cool and desaturated, this indigo shade offers a calm, structured alternative to brighter blues. It functions best as a supporting accent in UI layouts or branding rather than a full-page background, where it can appear washed out. Pair it with charcoal or slate for a sophisticated balance. Because it maintains a 6.8:1 contrast with black text, the hex code #818fd5 remains highly readable.
Questions about #818fd5
What is #818fd5 in RGB, HSL and CMYK?
In RGB, #818fd5 is rgb(129, 143, 213), in HSL hsl(230, 50%, 67%) and in CMYK 39%, 33%, 0%, 16%.
How should I use #818fd5 in my UI design?
Use #818fd5 as a secondary accent color rather than a primary background to avoid a washed-out appearance. It maintains a strong 6.8:1 contrast ratio against black text, making it a reliable choice for buttons or notification badges.
What colors pair best with #818fd5?
This cool indigo creates a sophisticated, modern balance when paired with charcoal or deep slate tones. If you need more contrast, it also works well as a muted counterpoint to lighter, cream-based neutrals or soft grays.
Is #818fd5 readable on white or black?
#818fd5 has a 3.07:1 contrast ratio on white and 6.82:1 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.