#181C36#181C36

#181C36 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.7% C 0.050 H 275.3°. Best body text is #FFFFFF at 16.69:1 contrast (WCAG AA passes).

Color values

HEX	#181C36
RGB	rgb(24, 28, 54)
HSL	hsl(232, 38%, 15%)
HSV	hsv(232, 56%, 21%)
CMYK	cmyk(55.6%, 48.1%, 0%, 78.8%)
CIE-LAB	lab(11.21, 6.93, -17.64)
CIE-LCH	lch(11.21, 18.95, 291.45°)
OKLab	oklab(23.72% 0.0046 -0.0499)
OKLCH	oklch(23.72% 0.05 275.3)
XYZ	xyz(1.4576, 1.2910, 3.6617)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C36 #363218

analogous

#182B36 #181C36 #231836

triadic

#181C36 #36181C #1C3618

tetradic

#181C36 #36182B #363218 #183623

square

#181C36 #36182B #363218 #183623

split-complementary

#181C36 #362318 #2B3618

monochromatic

#090B15 #090B15 #181C36 #2B3260 #3E488B

Accessibility & contrast

On white

16.69

#181C36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#181C36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C36

16.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C36	#FFFFFF	#000000	##FFFFFF
##181C36	1.00	16.69	1.26	16.69
#FFFFFF	16.69	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121F37

Deuteranopia (green-blind)

#0F1D35

Tritanopia (blue-blind)

#0D2126

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181c36;
/* rgb */ color: rgb(24, 28, 54);
/* oklch */ color: oklch(23.7% 0.050 275.3);

Tailwind

colors: {
  custom: {
    50: '#57576d',
    500: '#181c36',
    950: '#000000',
  },
}

SCSS

$custom: #181c36;
$custom-light: #57576d;
$custom-dark: #000000;

JSON

{
  "hex": "#181c36",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 54
  },
  "hsl": {
    "h": 232,
    "s": 38.462,
    "l": 15.294
  },
  "oklch": {
    "l": 0.23718,
    "c": 0.05008,
    "h": 275.3
  },
  "luminance": 0.01291
}

Semantic roles & 50–950 ramp

primary

#181C36

secondary

#6C663E

accent

#BF59CE

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030307

muted

#78787A

Preview Lab

Preview with #181C36

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

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