#51B7CC Hex Color
Cool refreshing cyan with stable undertones

This unsaturated cyan, #51b7cc, carries a cool, refreshing character that feels both youthful and stable. Because it is highly readable, it works well for UI backgrounds and text-heavy digital interfaces when paired with black. Avoid using it as a primary element next to stark white, as it can appear washed out. Use it as a supporting tone to ground brighter, more vivid accent colors.
Questions about #51b7cc
What is #51b7cc in RGB, HSL and CMYK?
In RGB, #51b7cc is rgb(81, 183, 204), in HSL hsl(190, 55%, 56%) and in CMYK 60%, 10%, 0%, 20%.
Does #51b7cc work well for UI text?
While #51b7cc is highly readable on dark backgrounds, avoid using it for long-form body text against white. It works best as an accent for buttons, icons, or navigation elements where high visibility is required without overwhelming the user.
What colors pair well with #51b7cc?
Is #51b7cc readable on white or black?
#51b7cc has a 2.33:1 contrast ratio on white and 8.99:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.