#283D57 Color
#283D57 is rgb(40, 61, 87) in RGB and hsl(213, 37%, 25%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.
#283D57
HEX
#283D57RGB
rgb(40, 61, 87)HSL
hsl(213, 37%, 25%)HSV
hsv(213, 54%, 34%)OKLCH
oklch(35.5% 0.053 254.3)CMYK
cmyk(54%, 30%, 0%, 66%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #283D57 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text11.08:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text1.9:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #283D57 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #283D57, useful for hover states, backgrounds, and text variants.