#183D39#183D39

#183D39 is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.2% C 0.043 H 185.9°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#183D39
RGB	rgb(24, 61, 57)
HSL	hsl(174, 44%, 17%)
HSV	hsv(174, 61%, 24%)
CMYK	cmyk(60.7%, 0%, 6.6%, 76.1%)
CIE-LAB	lab(23.09, -14.37, -1.56)
CIE-LCH	lch(23.09, 14.46, 186.18°)
OKLab	oklab(33.17% -0.0427 -0.0044)
OKLCH	oklch(33.17% 0.043 185.9)
XYZ	xyz(2.7836, 3.8268, 4.4621)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D39 #3D181C

analogous

#183D27 #183D39 #182F3D

triadic

#183D39 #39183D #3D3918

tetradic

#183D39 #27183D #3D181C #2F3D18

square

#183D39 #27183D #3D181C #2F3D18

split-complementary

#183D39 #3D182F #3D2718

monochromatic

#091615 #091615 #183D39 #296962 #3B958B

Accessibility & contrast

On white

11.90

#183D39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183D39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D39

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D39	#FFFFFF	#000000	##FFFFFF
##183D39	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3A39

Deuteranopia (green-blind)

#343539

Tritanopia (blue-blind)

#023E3C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183d39;
/* rgb */ color: rgb(24, 61, 57);
/* oklch */ color: oklch(33.2% 0.043 185.9);

Tailwind

colors: {
  custom: {
    50: '#59726f',
    500: '#183d39',
    950: '#000000',
  },
}

SCSS

$custom: #183d39;
$custom-light: #59726f;
$custom-dark: #000000;

JSON

{
  "hex": "#183d39",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 173.514,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.33168,
    "c": 0.04296,
    "h": 185.9
  },
  "luminance": 0.03827
}

Semantic roles & 50–950 ramp

primary

#183D39

secondary

#733D43

accent

#5562D3

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#040807

muted

#797B7A

Preview Lab

Preview with #183D39

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

Preview Lab → · Contrast checker → · Palette generator →