#51577B Color
#51577B is rgb(81, 87, 123) in RGB and hsl(231, 21%, 40%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.
#51577B
HEX
#51577BRGB
rgb(81, 87, 123)HSL
hsl(231, 21%, 40%)HSV
hsv(231, 34%, 48%)OKLCH
oklch(46.7% 0.059 276.6)CMYK
cmyk(34%, 29%, 0%, 52%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51577B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text7:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text3:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #51577B based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51577B, useful for hover states, backgrounds, and text variants.