#181E72#181E72

#181E72 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.8% C 0.141 H 271.1°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#181E72
RGB	rgb(24, 30, 114)
HSL	hsl(236, 65%, 27%)
HSV	hsv(236, 79%, 45%)
CMYK	cmyk(78.9%, 73.7%, 0%, 55.3%)
CIE-LAB	lab(17.17, 29.16, -48.71)
CIE-LCH	lch(17.17, 56.78, 300.91°)
OKLab	oklab(29.8% 0.0028 -0.141)
OKLCH	oklch(29.8% 0.141 271.1)
XYZ	xyz(3.8772, 2.3372, 16.1631)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E72 #726C18

analogous

#184B72 #181E72 #3F1872

triadic

#181E72 #72181E #1E7218

tetradic

#181E72 #72184B #726C18 #18723F

square

#181E72 #72184B #726C18 #18723F

split-complementary

#181E72 #723F18 #4B7218

monochromatic

#050719 #0D113F #181E72 #232BA5 #313CD4

Accessibility & contrast

On white

14.31

#181E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#181E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E72

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E72	#FFFFFF	#000000	##FFFFFF
##181E72	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F75

Deuteranopia (green-blind)

#002670

Tritanopia (blue-blind)

#003545

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181e72;
/* rgb */ color: rgb(24, 30, 114);
/* oklch */ color: oklch(29.8% 0.141 271.1);

Tailwind

colors: {
  custom: {
    50: '#665a9b',
    500: '#181e72',
    950: '#000000',
  },
}

SCSS

$custom: #181e72;
$custom-light: #665a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#181e72",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 114
  },
  "hsl": {
    "h": 236,
    "s": 65.217,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29797,
    "c": 0.14103,
    "h": 271.1
  },
  "luminance": 0.02338
}

Semantic roles & 50–950 ramp

primary

#181E72

secondary

#A7A03E

accent

#DD40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #181E72

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

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