#3751E1 Color
#3751E1 is rgb(55, 81, 225) in RGB and hsl(231, 74%, 55%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.
#3751E1
HEX
#3751E1RGB
rgb(55, 81, 225)HSL
hsl(231, 74%, 55%)HSV
hsv(231, 76%, 88%)OKLCH
oklch(51.1% 0.219 268.9)CMYK
cmyk(76%, 64%, 0%, 12%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #3751E1 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text6.13:1AA normal ✓AA large ✓AAA normal ✗
TextBlack text3.43:1AA normal ✗AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #3751E1 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #3751E1, useful for hover states, backgrounds, and text variants.