#1B399D Color

#1B399D is rgb(27, 57, 157) in RGB and hsl(226, 71%, 36%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B399D
HEX#1B399D
RGBrgb(27, 57, 157)
HSLhsl(226, 71%, 36%)
HSVhsv(226, 83%, 62%)
OKLCHoklch(39.3% 0.166 265.8)
CMYKcmyk(83%, 64%, 0%, 38%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B399D 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 #1B399D based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B399DComplementary#9D7F1BAnalogous#1B7A9DAnalogous#3D1B9DTriadic#9D1B39Triadic#399D1B

Tints & Shades

Lighter tints and darker shades of #1B399D, useful for hover states, backgrounds, and text variants.

Use #1B399D in Our Tools

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