#182F3D#182F3D

#182F3D is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.3% C 0.039 H 236.8°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#182F3D
RGB	rgb(24, 47, 61)
HSL	hsl(203, 44%, 17%)
HSV	hsv(203, 61%, 24%)
CMYK	cmyk(60.7%, 23%, 0%, 76.1%)
CIE-LAB	lab(18.21, -4.19, -11.63)
CIE-LCH	lch(18.21, 12.36, 250.20°)
OKLab	oklab(29.31% -0.0212 -0.0324)
OKLCH	oklch(29.31% 0.039 236.8)
XYZ	xyz(2.2352, 2.5640, 4.7911)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F3D #3D2618

analogous

#183D39 #182F3D #181D3D

triadic

#182F3D #3D182F #2F3D18

tetradic

#182F3D #39183D #3D2618 #1D3D18

square

#182F3D #39183D #3D2618 #1D3D18

split-complementary

#182F3D #3D181D #3D3918

monochromatic

#091116 #091116 #182F3D #295169 #3B7395

Accessibility & contrast

On white

13.88

#182F3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182F3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F3D

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F3D	#FFFFFF	#000000	##FFFFFF
##182F3D	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292F3E

Deuteranopia (green-blind)

#232B3D

Tritanopia (blue-blind)

#033334

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182f3d;
/* rgb */ color: rgb(24, 47, 61);
/* oklch */ color: oklch(29.3% 0.039 236.8);

Tailwind

colors: {
  custom: {
    50: '#586772',
    500: '#182f3d',
    950: '#000000',
  },
}

SCSS

$custom: #182f3d;
$custom-light: #586772;
$custom-dark: #000000;

JSON

{
  "hex": "#182f3d",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 61
  },
  "hsl": {
    "h": 202.703,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.29307,
    "c": 0.03871,
    "h": 236.8
  },
  "luminance": 0.02564
}

Semantic roles & 50–950 ramp

primary

#182F3D

secondary

#73523D

accent

#8455D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #182F3D

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

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