#181E90#181E90

#181E90 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.180 H 269.3°. Best body text is #FFFFFF at 12.91:1 contrast (WCAG AA passes).

Color values

HEX	#181E90
RGB	rgb(24, 30, 144)
HSL	hsl(237, 71%, 33%)
HSV	hsv(237, 83%, 56%)
CMYK	cmyk(83.3%, 79.2%, 0%, 43.5%)
CIE-LAB	lab(20.58, 40.01, -62.08)
CIE-LCH	lch(20.58, 73.85, 302.80°)
OKLab	oklab(33.23% -0.0021 -0.1798)
OKLCH	oklch(33.23% 0.18 269.3)
XYZ	xyz(5.8733, 3.1357, 26.6758)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E90 #908A18

analogous

#185A90 #181E90 #4E1890

triadic

#181E90 #90181E #1E9018

tetradic

#181E90 #90185A #908A18 #18904E

square

#181E90 #90185A #908A18 #18904E

split-complementary

#181E90 #904E18 #5A9018

monochromatic

#070827 #0F135C #181E90 #2129C4 #434BE0

Accessibility & contrast

On white

12.91

#181E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#181E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E90

12.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E90	#FFFFFF	#000000	##FFFFFF
##181E90	1.00	12.91	1.63	12.91
#FFFFFF	12.91	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#002B8E

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #181e90;
/* rgb */ color: rgb(24, 30, 144);
/* oklch */ color: oklch(33.2% 0.180 269.3);

Tailwind

colors: {
  custom: {
    50: '#6e5cb2',
    500: '#181e90',
    950: '#000000',
  },
}

SCSS

$custom: #181e90;
$custom-light: #6e5cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#181e90",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 144
  },
  "hsl": {
    "h": 237,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33234,
    "c": 0.17985,
    "h": 269.3
  },
  "luminance": 0.03136
}

Semantic roles & 50–950 ramp

primary

#181E90

secondary

#C0BA43

accent

#E53AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181E90

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

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