#183D3A#183D3A

#183D3A is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.2% C 0.043 H 188.2°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#183D3A
RGB	rgb(24, 61, 58)
HSL	hsl(175, 44%, 17%)
HSV	hsv(175, 61%, 24%)
CMYK	cmyk(60.7%, 0%, 4.9%, 76.1%)
CIE-LAB	lab(23.12, -14.06, -2.17)
CIE-LCH	lch(23.12, 14.22, 188.79°)
OKLab	oklab(33.21% -0.0422 -0.0061)
OKLCH	oklch(33.21% 0.043 188.2)
XYZ	xyz(2.8088, 3.8369, 4.5947)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D3A #3D181B

analogous

#183D28 #183D3A #182E3D

triadic

#183D3A #3A183D #3D3A18

tetradic

#183D3A #28183D #3D181B #2E3D18

square

#183D3A #28183D #3D181B #2E3D18

split-complementary

#183D3A #3D182E #3D2818

monochromatic

#091615 #091615 #183D3A #296964 #3B958E

Accessibility & contrast

On white

11.88

#183D3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183D3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D3A

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D3A	#FFFFFF	#000000	##FFFFFF
##183D3A	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3A3A

Deuteranopia (green-blind)

#34353A

Tritanopia (blue-blind)

#013F3C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183d3a;
/* rgb */ color: rgb(24, 61, 58);
/* oklch */ color: oklch(33.2% 0.043 188.2);

Tailwind

colors: {
  custom: {
    50: '#597270',
    500: '#183d3a',
    950: '#000000',
  },
}

SCSS

$custom: #183d3a;
$custom-light: #597270;
$custom-dark: #000000;

JSON

{
  "hex": "#183d3a",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 58
  },
  "hsl": {
    "h": 175.135,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.33207,
    "c": 0.04263,
    "h": 188.2
  },
  "luminance": 0.03837
}

Semantic roles & 50–950 ramp

primary

#183D3A

secondary

#733D42

accent

#555FD3

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#040807

muted

#797B7A

Preview Lab

Preview with #183D3A

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

Preview Lab → · Contrast checker → · Palette generator →