#4F51B5 Color
#4F51B5 is rgb(79, 81, 181) in RGB and hsl(239, 41%, 51%) in HSL. The closest CSS named color is SlateBlue. White text is most readable on this background.
#4F51B5
HEX
#4F51B5RGB
rgb(79, 81, 181)HSL
hsl(239, 41%, 51%)HSV
hsv(239, 56%, 71%)OKLCH
oklch(48.9% 0.155 278.1)CMYK
cmyk(56%, 55%, 0%, 29%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #4F51B5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text6.61:1AA normal ✓AA large ✓AAA normal ✗
TextBlack text3.18:1AA normal ✗AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #4F51B5 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #4F51B5, useful for hover states, backgrounds, and text variants.