#51A3B8 Color
#51A3B8 is rgb(81, 163, 184) in RGB and hsl(192, 42%, 52%) in HSL. The closest CSS named color is CadetBlue. Black text is most readable on this background.
#51A3B8
HEX
#51A3B8RGB
rgb(81, 163, 184)HSL
hsl(192, 42%, 52%)HSV
hsv(192, 56%, 72%)OKLCH
oklch(67.2% 0.085 216.8)CMYK
cmyk(56%, 11%, 0%, 28%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51A3B8 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.88:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text7.28:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51A3B8 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51A3B8, useful for hover states, backgrounds, and text variants.