#1237A5 Color

#1237A5 is rgb(18, 55, 165) in RGB and hsl(225, 80%, 36%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1237A5

HEX#1237A5

RGBrgb(18, 55, 165)

HSLhsl(225, 80%, 36%)

HSVhsv(225, 89%, 65%)

OKLCHoklch(39.4% 0.181 264.6)

CMYKcmyk(89%, 67%, 0%, 35%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1237A5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.93:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.12:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1237A5 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1237A5 Complementary#A58112 Analogous#1281A5 Analogous#3712A5 Triadic#A51237 Triadic#37A512

Tints & Shades

Lighter tints and darker shades of #1237A5, useful for hover states, backgrounds, and text variants.

Tints

#1745CF #2C5BE8 #557BEC #7A97F0 #A3B8F5 #CDD8F9

Shades

#102F8E #0E297C #0B2265 #091C53 #07143C #050E29

Use #1237A5 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex