#182C3D#182C3D

#182C3D is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.5% C 0.041 H 245.5°. Best body text is #FFFFFF at 14.32:1 contrast (WCAG AA passes).

Color values

HEX	#182C3D
RGB	rgb(24, 44, 61)
HSL	hsl(208, 44%, 17%)
HSV	hsv(208, 61%, 24%)
CMYK	cmyk(60.7%, 27.9%, 0%, 76.1%)
CIE-LAB	lab(17.14, -2.12, -13.28)
CIE-LCH	lch(17.14, 13.44, 260.91°)
OKLab	oklab(28.47% -0.0169 -0.0371)
OKLCH	oklch(28.47% 0.041 245.5)
XYZ	xyz(2.1194, 2.3323, 4.7525)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182C3D #3D2918

analogous

#183D3C #182C3D #181A3D

triadic

#182C3D #3D182C #2C3D18

tetradic

#182C3D #3C183D #3D2918 #1A3D18

square

#182C3D #3C183D #3D2918 #1A3D18

split-complementary

#182C3D #3D181A #3D3C18

monochromatic

#091016 #091016 #182C3D #294C69 #3B6B95

Accessibility & contrast

On white

14.32

#182C3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#182C3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182C3D

14.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182C3D	#FFFFFF	#000000	##FFFFFF
##182C3D	1.00	14.32	1.47	14.32
#FFFFFF	14.32	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252C3E

Deuteranopia (green-blind)

#20293D

Tritanopia (blue-blind)

#043032

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #182c3d;
/* rgb */ color: rgb(24, 44, 61);
/* oklch */ color: oklch(28.5% 0.041 245.5);

Tailwind

colors: {
  custom: {
    50: '#586472',
    500: '#182c3d',
    950: '#000000',
  },
}

SCSS

$custom: #182c3d;
$custom-light: #586472;
$custom-dark: #000000;

JSON

{
  "hex": "#182c3d",
  "rgb": {
    "r": 24,
    "g": 44,
    "b": 61
  },
  "hsl": {
    "h": 207.568,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.28466,
    "c": 0.04078,
    "h": 245.5
  },
  "luminance": 0.02332
}

Semantic roles & 50–950 ramp

primary

#182C3D

secondary

#73563D

accent

#8F55D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030508

muted

#787A7B

Preview Lab

Preview with #182C3D

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

Preview Lab → · Contrast checker → · Palette generator →