#181D2E#181D2E

#181D2E is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.4% C 0.034 H 271.1°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#181D2E
RGB	rgb(24, 29, 46)
HSL	hsl(226, 31%, 14%)
HSV	hsv(226, 48%, 18%)
CMYK	cmyk(47.8%, 37%, 0%, 82%)
CIE-LAB	lab(11.06, 3.19, -12.09)
CIE-LCH	lch(11.06, 12.50, 284.79°)
OKLab	oklab(23.44% 0.0006 -0.0337)
OKLCH	oklch(23.44% 0.034 271.1)
XYZ	xyz(1.3090, 1.2701, 2.7604)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D2E #2E2918

analogous

#18282E #181D2E #1E182E

triadic

#181D2E #2E181D #1D2E18

tetradic

#181D2E #2E1828 #2E2918 #182E1E

square

#181D2E #2E1828 #2E2918 #182E1E

split-complementary

#181D2E #2E1E18 #282E18

monochromatic

#0A0D14 #0A0D14 #181D2E #2D3656 #42507E

Accessibility & contrast

On white

16.75

#181D2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#181D2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D2E

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D2E	#FFFFFF	#000000	##FFFFFF
##181D2E	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171F2F

Deuteranopia (green-blind)

#151D2E

Tritanopia (blue-blind)

#112023

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181d2e;
/* rgb */ color: rgb(24, 29, 46);
/* oklch */ color: oklch(23.4% 0.034 271.1);

Tailwind

colors: {
  custom: {
    50: '#565866',
    500: '#181d2e',
    950: '#000000',
  },
}

SCSS

$custom: #181d2e;
$custom-light: #565866;
$custom-dark: #000000;

JSON

{
  "hex": "#181d2e",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 46
  },
  "hsl": {
    "h": 226.364,
    "s": 31.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23444,
    "c": 0.03376,
    "h": 271.1
  },
  "luminance": 0.0127
}

Semantic roles & 50–950 ramp

primary

#181D2E

secondary

#635B3F

accent

#B060C8

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #181D2E

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

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