#283F81 Color
#283F81 is rgb(40, 63, 129) in RGB and hsl(224, 53%, 33%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.
#283F81
HEX
#283F81RGB
rgb(40, 63, 129)HSL
hsl(224, 53%, 33%)HSV
hsv(224, 69%, 51%)OKLCH
oklch(38.8% 0.115 266.6)CMYK
cmyk(69%, 51%, 0%, 49%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #283F81 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text9.91:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.12:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #283F81 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #283F81, useful for hover states, backgrounds, and text variants.