#181E43#181E43

#181E43 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.070 H 273.5°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).

Color values

HEX	#181E43
RGB	rgb(24, 30, 67)
HSL	hsl(232, 47%, 18%)
HSV	hsv(232, 64%, 26%)
CMYK	cmyk(64.2%, 55.2%, 0%, 73.7%)
CIE-LAB	lab(12.78, 10.52, -24.33)
CIE-LCH	lch(12.78, 26.51, 293.38°)
OKLab	oklab(25.21% 0.0042 -0.0695)
OKLCH	oklch(25.21% 0.07 273.5)
XYZ	xyz(1.8538, 1.5278, 5.5063)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E43 #433D18

analogous

#183343 #181E43 #271843

triadic

#181E43 #43181E #1E4318

tetradic

#181E43 #431833 #433D18 #184327

square

#181E43 #431833 #433D18 #184327

split-complementary

#181E43 #432718 #334318

monochromatic

#080A17 #080A17 #181E43 #283270 #38469D

Accessibility & contrast

On white

16.08

#181E43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#181E43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E43

16.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E43	#FFFFFF	#000000	##FFFFFF
##181E43	1.00	16.08	1.31	16.08
#FFFFFF	16.08	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2344

Deuteranopia (green-blind)

#061F42

Tritanopia (blue-blind)

#01262D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181e43;
/* rgb */ color: rgb(24, 30, 67);
/* oklch */ color: oklch(25.2% 0.070 273.5);

Tailwind

colors: {
  custom: {
    50: '#595977',
    500: '#181e43',
    950: '#000000',
  },
}

SCSS

$custom: #181e43;
$custom-light: #595977;
$custom-dark: #000000;

JSON

{
  "hex": "#181e43",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 67
  },
  "hsl": {
    "h": 231.628,
    "s": 47.253,
    "l": 17.843
  },
  "oklch": {
    "l": 0.25213,
    "c": 0.06962,
    "h": 273.5
  },
  "luminance": 0.01528
}

Semantic roles & 50–950 ramp

primary

#181E43

secondary

#7A713D

accent

#C451D7

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #181E43

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

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