#1B3F65 Color
#1B3F65 is rgb(27, 63, 101) in RGB and hsl(211, 58%, 25%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.
#1B3F65
HEX
#1B3F65RGB
rgb(27, 63, 101)HSL
hsl(211, 58%, 25%)HSV
hsv(211, 73%, 40%)OKLCH
oklch(36.1% 0.078 251.9)CMYK
cmyk(73%, 38%, 0%, 60%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #1B3F65 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text10.79:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text1.95:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #1B3F65 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #1B3F65, useful for hover states, backgrounds, and text variants.