#183E37#183E37

#183E37 is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.4% C 0.045 H 179.6°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#183E37
RGB	rgb(24, 62, 55)
HSL	hsl(169, 44%, 17%)
HSV	hsv(169, 61%, 24%)
CMYK	cmyk(61.3%, 0%, 11.3%, 75.7%)
CIE-LAB	lab(23.39, -15.57, 0.22)
CIE-LCH	lch(23.39, 15.57, 179.21°)
OKLab	oklab(33.39% -0.0452 0.0003)
OKLCH	oklch(33.39% 0.045 179.6)
XYZ	xyz(2.7886, 3.9150, 4.2224)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E37 #3E181F

analogous

#183E24 #183E37 #18323E

triadic

#183E37 #37183E #3E3718

tetradic

#183E37 #24183E #3E181F #323E18

square

#183E37 #24183E #3E181F #323E18

split-complementary

#183E37 #3E1832 #3E2418

monochromatic

#091614 #091614 #183E37 #296A5E #3A9685

Accessibility & contrast

On white

11.78

#183E37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183E37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E37

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E37	#FFFFFF	#000000	##FFFFFF
##183E37	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3A37

Deuteranopia (green-blind)

#353638

Tritanopia (blue-blind)

#033F3C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183e37;
/* rgb */ color: rgb(24, 62, 55);
/* oklch */ color: oklch(33.4% 0.045 179.6);

Tailwind

colors: {
  custom: {
    50: '#59736d',
    500: '#183e37',
    950: '#000000',
  },
}

SCSS

$custom: #183e37;
$custom-light: #59736d;
$custom-dark: #000000;

JSON

{
  "hex": "#183e37",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 168.947,
    "s": 44.186,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33388,
    "c": 0.04518,
    "h": 179.6
  },
  "luminance": 0.03915
}

Semantic roles & 50–950 ramp

primary

#183E37

secondary

#743D48

accent

#546BD4

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#040807

muted

#797B7A

Preview Lab

Preview with #183E37

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

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