#51B4E1 Color
#51B4E1 is rgb(81, 180, 225) in RGB and hsl(199, 71%, 60%) in HSL. The closest CSS named color is MediumTurquoise. Black text is most readable on this background.
#51B4E1
HEX
#51B4E1RGB
rgb(81, 180, 225)HSL
hsl(199, 71%, 60%)HSV
hsv(199, 64%, 88%)OKLCH
oklch(72.9% 0.113 230.8)CMYK
cmyk(64%, 20%, 0%, 12%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51B4E1 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.34:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text8.97:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51B4E1 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51B4E1, useful for hover states, backgrounds, and text variants.