#283137#283137

#283137 is a dark, near-neutral cyan. Relative luminance 0.029; OKLCH L 30.7% C 0.016 H 237.3°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#283137
RGB	rgb(40, 49, 55)
HSL	hsl(204, 16%, 19%)
HSV	hsv(204, 27%, 22%)
CMYK	cmyk(27.3%, 10.9%, 0%, 78.4%)
CIE-LAB	lab(19.73, -2.17, -5.08)
CIE-LCH	lch(19.73, 5.53, 246.86°)
OKLab	oklab(30.72% -0.0089 -0.0138)
OKLCH	oklch(30.72% 0.016 237.3)
XYZ	xyz(2.6628, 2.9235, 4.0377)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283137 #372E28

analogous

#283735 #283137 #282937

triadic

#283137 #372831 #313728

tetradic

#283137 #352837 #372E28 #293728

square

#283137 #352837 #372E28 #293728

split-complementary

#283137 #372829 #373528

monochromatic

#0D1012 #0E1114 #283137 #42515A #5C707E

Accessibility & contrast

On white

13.25

#283137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#283137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283137

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283137	#FFFFFF	#000000	##FFFFFF
##283137	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3137

Deuteranopia (green-blind)

#2C2F37

Tritanopia (blue-blind)

#243333

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #283137;
/* rgb */ color: rgb(40, 49, 55);
/* oklch */ color: oklch(30.7% 0.016 237.3);

Tailwind

colors: {
  custom: {
    50: '#62696d',
    500: '#283137',
    950: '#000000',
  },
}

SCSS

$custom: #283137;
$custom-light: #62696d;
$custom-dark: #000000;

JSON

{
  "hex": "#283137",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 204,
    "s": 15.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.30719,
    "c": 0.01643,
    "h": 237.3
  },
  "luminance": 0.02924
}

Semantic roles & 50–950 ramp

primary

#283137

secondary

#685B53

accent

#8D6FB9

background

#F5F6F6

surface

#EAEBEB

border

#C6C6C6

text

#050607

muted

#797A7A

Preview Lab

Preview with #283137

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

Preview Lab → · Contrast checker → · Palette generator →