#183D37#183D37

#183D37 is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.1% C 0.044 H 181.4°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#183D37
RGB	rgb(24, 61, 55)
HSL	hsl(170, 44%, 17%)
HSV	hsv(170, 61%, 24%)
CMYK	cmyk(60.7%, 0%, 9.8%, 76.1%)
CIE-LAB	lab(23.02, -14.99, -0.32)
CIE-LCH	lch(23.02, 15.00, 181.21°)
OKLab	oklab(33.09% -0.0438 -0.0011)
OKLCH	oklch(33.09% 0.044 181.4)
XYZ	xyz(2.7347, 3.8073, 4.2044)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D37 #3D181E

analogous

#183D25 #183D37 #18313D

triadic

#183D37 #37183D #3D3718

tetradic

#183D37 #25183D #3D181E #313D18

square

#183D37 #25183D #3D181E #313D18

split-complementary

#183D37 #3D1831 #3D2518

monochromatic

#091614 #091614 #183D37 #29695F #3B9586

Accessibility & contrast

On white

11.92

#183D37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#183D37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D37

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D37	#FFFFFF	#000000	##FFFFFF
##183D37	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3937

Deuteranopia (green-blind)

#343538

Tritanopia (blue-blind)

#033E3B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183d37;
/* rgb */ color: rgb(24, 61, 55);
/* oklch */ color: oklch(33.1% 0.044 181.4);

Tailwind

colors: {
  custom: {
    50: '#59726d',
    500: '#183d37',
    950: '#000000',
  },
}

SCSS

$custom: #183d37;
$custom-light: #59726d;
$custom-dark: #000000;

JSON

{
  "hex": "#183d37",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 170.27,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.33092,
    "c": 0.04382,
    "h": 181.4
  },
  "luminance": 0.03808
}

Semantic roles & 50–950 ramp

primary

#183D37

secondary

#733D46

accent

#5569D3

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#040807

muted

#797B7A

Preview Lab

Preview with #183D37

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

Preview Lab → · Contrast checker → · Palette generator →