#183D3E#183D3E

#183D3E is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.4% C 0.042 H 197.7°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#183D3E
RGB	rgb(24, 61, 62)
HSL	hsl(182, 44%, 17%)
HSV	hsv(182, 61%, 24%)
CMYK	cmyk(61.3%, 1.6%, 0%, 75.7%)
CIE-LAB	lab(23.27, -12.76, -4.63)
CIE-LCH	lch(23.27, 13.57, 199.96°)
OKLab	oklab(33.37% -0.0401 -0.0128)
OKLCH	oklch(33.37% 0.042 197.7)
XYZ	xyz(2.9146, 3.8792, 5.1517)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D3E #3E1918

analogous

#183E2C #183D3E #182A3E

triadic

#183D3E #3E183D #3D3E18

tetradic

#183D3E #2C183E #3E1918 #2A3E18

square

#183D3E #2C183E #3E1918 #2A3E18

split-complementary

#183D3E #3E182A #3E2C18

monochromatic

#091616 #091616 #183D3E #29686A #3A9496

Accessibility & contrast

On white

11.83

#183D3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183D3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D3E

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D3E	#FFFFFF	#000000	##FFFFFF
##183D3E	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393A3E

Deuteranopia (green-blind)

#33353E

Tritanopia (blue-blind)

#003F3D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183d3e;
/* rgb */ color: rgb(24, 61, 62);
/* oklch */ color: oklch(33.4% 0.042 197.7);

Tailwind

colors: {
  custom: {
    50: '#597273',
    500: '#183d3e',
    950: '#000000',
  },
}

SCSS

$custom: #183d3e;
$custom-light: #597273;
$custom-dark: #000000;

JSON

{
  "hex": "#183d3e",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 62
  },
  "hsl": {
    "h": 181.579,
    "s": 44.186,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33371,
    "c": 0.04209,
    "h": 197.7
  },
  "luminance": 0.03879
}

Semantic roles & 50–950 ramp

primary

#183D3E

secondary

#743F3D

accent

#5754D4

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#040808

muted

#797B7B

Preview Lab

Preview with #183D3E

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

Preview Lab → · Contrast checker → · Palette generator →