#183A37#183A37

#183A37 is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.2% C 0.040 H 187.7°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#183A37
RGB	rgb(24, 58, 55)
HSL	hsl(175, 41%, 16%)
HSV	hsv(175, 59%, 23%)
CMYK	cmyk(58.6%, 0%, 5.2%, 77.3%)
CIE-LAB	lab(21.93, -13.24, -1.93)
CIE-LCH	lch(21.93, 13.38, 188.27°)
OKLab	oklab(32.21% -0.0397 -0.0054)
OKLCH	oklch(32.21% 0.04 187.7)
XYZ	xyz(2.5790, 3.4959, 4.1526)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A37 #3A181B

analogous

#183A26 #183A37 #182C3A

triadic

#183A37 #37183A #3A3718

tetradic

#183A37 #26183A #3A181B #2C3A18

square

#183A37 #26183A #3A181B #2C3A18

split-complementary

#183A37 #3A182C #3A2618

monochromatic

#091615 #091615 #183A37 #2A6560 #3C9189

Accessibility & contrast

On white

12.36

#183A37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#183A37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A37

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A37	#FFFFFF	#000000	##FFFFFF
##183A37	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373737

Deuteranopia (green-blind)

#313337

Tritanopia (blue-blind)

#053B39

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183a37;
/* rgb */ color: rgb(24, 58, 55);
/* oklch */ color: oklch(32.2% 0.040 187.7);

Tailwind

colors: {
  custom: {
    50: '#58706d',
    500: '#183a37',
    950: '#000000',
  },
}

SCSS

$custom: #183a37;
$custom-light: #58706d;
$custom-dark: #000000;

JSON

{
  "hex": "#183a37",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 174.706,
    "s": 41.463,
    "l": 16.078
  },
  "oklch": {
    "l": 0.32207,
    "c": 0.04005,
    "h": 187.7
  },
  "luminance": 0.03496
}

Semantic roles & 50–950 ramp

primary

#183A37

secondary

#703E42

accent

#5761D1

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#030707

muted

#787A7A

Preview Lab

Preview with #183A37

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

Preview Lab → · Contrast checker → · Palette generator →