#183531#183531

#183531 is a dark, muted teal. Relative luminance 0.030; OKLCH L 30.5% C 0.036 H 184.0°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#183531
RGB	rgb(24, 53, 49)
HSL	hsl(172, 38%, 15%)
HSV	hsv(172, 55%, 21%)
CMYK	cmyk(54.7%, 0%, 7.5%, 79.2%)
CIE-LAB	lab(19.89, -12.12, -0.86)
CIE-LCH	lch(19.89, 12.15, 184.04°)
OKLab	oklab(30.49% -0.0358 -0.0025)
OKLCH	oklch(30.49% 0.036 184)
XYZ	xyz(2.2039, 2.9620, 3.3607)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183531 #35181C

analogous

#183522 #183531 #182A35

triadic

#183531 #311835 #353118

tetradic

#183531 #221835 #35181C #2A3518

square

#183531 #221835 #35181C #2A3518

split-complementary

#183531 #35182A #352218

monochromatic

#0A1513 #0A1513 #183531 #2B5F58 #3E897F

Accessibility & contrast

On white

13.19

#183531 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#183531 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183531

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183531	#FFFFFF	#000000	##FFFFFF
##183531	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333231

Deuteranopia (green-blind)

#2E2F31

Tritanopia (blue-blind)

#0B3634

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #183531;
/* rgb */ color: rgb(24, 53, 49);
/* oklch */ color: oklch(30.5% 0.036 184.0);

Tailwind

colors: {
  custom: {
    50: '#576c69',
    500: '#183531',
    950: '#000000',
  },
}

SCSS

$custom: #183531;
$custom-light: #576c69;
$custom-dark: #000000;

JSON

{
  "hex": "#183531",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 171.724,
    "s": 37.662,
    "l": 15.098
  },
  "oklch": {
    "l": 0.30493,
    "c": 0.03591,
    "h": 184
  },
  "luminance": 0.02962
}

Semantic roles & 50–950 ramp

primary

#183531

secondary

#6B3E44

accent

#5A6ACE

background

#F5F6F6

surface

#E9EBEB

border

#C5C6C6

text

#030706

muted

#787A7A

Preview Lab

Preview with #183531

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

Preview Lab → · Contrast checker → · Palette generator →