#181E73#181E73

#181E73 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.9% C 0.142 H 271.1°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#181E73
RGB	rgb(24, 30, 115)
HSL	hsl(236, 65%, 27%)
HSV	hsv(236, 79%, 45%)
CMYK	cmyk(79.1%, 73.9%, 0%, 54.9%)
CIE-LAB	lab(17.27, 29.54, -49.18)
CIE-LCH	lch(17.27, 57.37, 300.99°)
OKLab	oklab(29.91% 0.0026 -0.1424)
OKLCH	oklch(29.91% 0.142 271.1)
XYZ	xyz(3.9344, 2.3601, 16.4645)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E73 #736D18

analogous

#184C73 #181E73 #401873

triadic

#181E73 #73181E #1E7318

tetradic

#181E73 #73184C #736D18 #187340

square

#181E73 #73184C #736D18 #187340

split-complementary

#181E73 #734018 #4C7318

monochromatic

#050719 #0D1140 #181E73 #232BA6 #313CD4

Accessibility & contrast

On white

14.26

#181E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#181E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E73

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E73	#FFFFFF	#000000	##FFFFFF
##181E73	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F76

Deuteranopia (green-blind)

#002671

Tritanopia (blue-blind)

#003646

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181e73;
/* rgb */ color: rgb(24, 30, 115);
/* oklch */ color: oklch(29.9% 0.142 271.1);

Tailwind

colors: {
  custom: {
    50: '#665a9c',
    500: '#181e73',
    950: '#000000',
  },
}

SCSS

$custom: #181e73;
$custom-light: #665a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#181e73",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 115
  },
  "hsl": {
    "h": 236.044,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29907,
    "c": 0.14239,
    "h": 271.1
  },
  "luminance": 0.02361
}

Semantic roles & 50–950 ramp

primary

#181E73

secondary

#A8A13F

accent

#DD3FE8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #181E73

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

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