#51B8F0 Color
#51B8F0 is rgb(81, 184, 240) in RGB and hsl(201, 84%, 63%) in HSL. The closest CSS named color is CornflowerBlue. Black text is most readable on this background.
#51B8F0
HEX
#51B8F0RGB
rgb(81, 184, 240)HSL
hsl(201, 84%, 63%)HSV
hsv(201, 66%, 94%)OKLCH
oklch(74.5% 0.124 235.7)CMYK
cmyk(66%, 23%, 0%, 6%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51B8F0 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.22:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.46:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51B8F0 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51B8F0, useful for hover states, backgrounds, and text variants.