#278B5B Color
#278B5B is rgb(39, 139, 91) in RGB and hsl(151, 56%, 35%) in HSL. The closest CSS named color is SeaGreen. Black text is most readable on this background.
#278B5B
HEX
#278B5BRGB
rgb(39, 139, 91)HSL
hsl(151, 56%, 35%)HSV
hsv(151, 72%, 55%)OKLCH
oklch(56.8% 0.118 157.8)CMYK
cmyk(72%, 0%, 35%, 45%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #278B5B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text4.26:1AA normal ✗AA large ✓AAA normal ✗
TextBlack text4.93:1AA normal ✓AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #278B5B based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #278B5B, useful for hover states, backgrounds, and text variants.