#181D76#181D76

#181D76 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.148 H 271.0°. Best body text is #FFFFFF at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#181D76
RGB	rgb(24, 29, 118)
HSL	hsl(237, 66%, 28%)
HSV	hsv(237, 80%, 46%)
CMYK	cmyk(79.7%, 75.4%, 0%, 53.7%)
CIE-LAB	lab(17.37, 31.31, -50.96)
CIE-LCH	lch(17.37, 59.81, 301.57°)
OKLab	oklab(30.07% 0.0027 -0.1475)
OKLCH	oklch(30.07% 0.148 271)
XYZ	xyz(4.0850, 2.3805, 17.3802)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D76 #767118

analogous

#184C76 #181D76 #421876

triadic

#181D76 #76181D #1D7618

tetradic

#181D76 #76184C #767118 #187642

square

#181D76 #76184C #767118 #187642

split-complementary

#181D76 #764218 #4C7618

monochromatic

#050619 #0E1143 #181D76 #2229A9 #333CD5

Accessibility & contrast

On white

14.23

#181D76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#181D76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D76

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D76	#FFFFFF	#000000	##FFFFFF
##181D76	1.00	14.23	1.48	14.23
#FFFFFF	14.23	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F79

Deuteranopia (green-blind)

#002674

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181d76;
/* rgb */ color: rgb(24, 29, 118);
/* oklch */ color: oklch(30.1% 0.148 271.0);

Tailwind

colors: {
  custom: {
    50: '#675a9f',
    500: '#181d76',
    950: '#000000',
  },
}

SCSS

$custom: #181d76;
$custom-light: #675a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#181d76",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 118
  },
  "hsl": {
    "h": 236.809,
    "s": 66.197,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30074,
    "c": 0.14755,
    "h": 271
  },
  "luminance": 0.02381
}

Semantic roles & 50–950 ramp

primary

#181D76

secondary

#ABA53F

accent

#E03FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #181D76

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →