#183F37#183F37

#183F37 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.7% C 0.047 H 177.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#183F37
RGB	rgb(24, 63, 55)
HSL	hsl(168, 45%, 17%)
HSV	hsv(168, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 12.7%, 75.3%)
CIE-LAB	lab(23.75, -16.13, 0.75)
CIE-LCH	lch(23.75, 16.15, 177.35°)
OKLab	oklab(33.68% -0.0465 0.0017)
OKLCH	oklch(33.68% 0.047 177.9)
XYZ	xyz(2.8435, 4.0248, 4.2407)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F37 #3F1820

analogous

#183F24 #183F37 #18343F

triadic

#183F37 #37183F #3F3718

tetradic

#183F37 #24183F #3F1820 #343F18

square

#183F37 #24183F #3F1820 #343F18

split-complementary

#183F37 #3F1834 #3F2418

monochromatic

#081613 #081613 #183F37 #296B5E #3A9884

Accessibility & contrast

On white

11.63

#183F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#183F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F37

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F37	#FFFFFF	#000000	##FFFFFF
##183F37	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3B37

Deuteranopia (green-blind)

#363738

Tritanopia (blue-blind)

#03403D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183f37;
/* rgb */ color: rgb(24, 63, 55);
/* oklch */ color: oklch(33.7% 0.047 177.9);

Tailwind

colors: {
  custom: {
    50: '#59746d',
    500: '#183f37',
    950: '#000000',
  },
}

SCSS

$custom: #183f37;
$custom-light: #59746d;
$custom-dark: #000000;

JSON

{
  "hex": "#183f37",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 167.692,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33683,
    "c": 0.04656,
    "h": 177.9
  },
  "luminance": 0.04025
}

Semantic roles & 50–950 ramp

primary

#183F37

secondary

#753D49

accent

#536ED5

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#040807

muted

#797B7A

Preview Lab

Preview with #183F37

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

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