#553B91 Color
#553B91 is rgb(85, 59, 145) in RGB and hsl(258, 42%, 40%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.
#553B91
HEX
#553B91RGB
rgb(85, 59, 145)HSL
hsl(258, 42%, 40%)HSV
hsv(258, 59%, 57%)OKLCH
oklch(42.8% 0.136 293.8)CMYK
cmyk(41%, 59%, 0%, 43%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #553B91 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text8.68:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.42:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #553B91 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #553B91, useful for hover states, backgrounds, and text variants.