#1F3751 Color
#1F3751 is rgb(31, 55, 81) in RGB and hsl(211, 45%, 22%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.
#1F3751
HEX
#1F3751RGB
rgb(31, 55, 81)HSL
hsl(211, 45%, 22%)HSV
hsv(211, 62%, 32%)OKLCH
oklch(33% 0.055 251.6)CMYK
cmyk(62%, 32%, 0%, 68%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #1F3751 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text12.18:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text1.72:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #1F3751 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #1F3751, useful for hover states, backgrounds, and text variants.