#182B3D#182B3D

#182B3D is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.2% C 0.042 H 248.2°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#182B3D
RGB	rgb(24, 43, 61)
HSL	hsl(209, 44%, 17%)
HSV	hsv(209, 61%, 24%)
CMYK	cmyk(60.7%, 29.5%, 0%, 76.1%)
CIE-LAB	lab(16.79, -1.42, -13.82)
CIE-LCH	lch(16.79, 13.90, 264.12°)
OKLab	oklab(28.19% -0.0154 -0.0387)
OKLCH	oklch(28.19% 0.042 248.2)
XYZ	xyz(2.0826, 2.2587, 4.7402)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B3D #3D2A18

analogous

#183D3D #182B3D #18193D

triadic

#182B3D #3D182B #2B3D18

tetradic

#182B3D #3D183D #3D2A18 #193D18

square

#182B3D #3D183D #3D2A18 #193D18

split-complementary

#182B3D #3D1819 #3D3D18

monochromatic

#090F16 #090F16 #182B3D #294A69 #3B6995

Accessibility & contrast

On white

14.46

#182B3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#182B3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B3D

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B3D	#FFFFFF	#000000	##FFFFFF
##182B3D	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242C3E

Deuteranopia (green-blind)

#1F283D

Tritanopia (blue-blind)

#042F31

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #182b3d;
/* rgb */ color: rgb(24, 43, 61);
/* oklch */ color: oklch(28.2% 0.042 248.2);

Tailwind

colors: {
  custom: {
    50: '#586472',
    500: '#182b3d',
    950: '#000000',
  },
}

SCSS

$custom: #182b3d;
$custom-light: #586472;
$custom-dark: #000000;

JSON

{
  "hex": "#182b3d",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 61
  },
  "hsl": {
    "h": 209.189,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.28189,
    "c": 0.04167,
    "h": 248.2
  },
  "luminance": 0.02259
}

Semantic roles & 50–950 ramp

primary

#182B3D

secondary

#73583D

accent

#9255D3

background

#F5F5F6

surface

#E9EAEC

border

#C5C6C7

text

#030508

muted

#78797B

Preview Lab

Preview with #182B3D

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

Preview Lab → · Contrast checker → · Palette generator →