#313137#313137

#313137 is a dark, near-neutral grey. Relative luminance 0.031; OKLCH L 31.6% C 0.011 H 285.8°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#313137
RGB	rgb(49, 49, 55)
HSL	hsl(240, 6%, 20%)
HSV	hsv(240, 11%, 22%)
CMYK	cmyk(10.9%, 10.9%, 0%, 78.4%)
CIE-LAB	lab(20.54, 1.47, -3.80)
CIE-LCH	lch(20.54, 4.07, 291.13°)
OKLab	oklab(31.55% 0.0029 -0.0102)
OKLCH	oklch(31.55% 0.011 285.8)
XYZ	xyz(3.0544, 3.1254, 4.0560)
Luminance	0.0313 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313137 #373731

analogous

#313437 #313137 #343137

triadic

#313137 #373131 #313731

tetradic

#313137 #373134 #373731 #313734

square

#313137 #373134 #373731 #313734

split-complementary

#313137 #373431 #343731

monochromatic

#0E0E10 #141417 #313137 #4E4E57 #6B6B78

Accessibility & contrast

On white

12.92

#313137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#313137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313137

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313137	#FFFFFF	#000000	##FFFFFF
##313137	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303237

Deuteranopia (green-blind)

#303137

Tritanopia (blue-blind)

#303233

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #313137;
/* rgb */ color: rgb(49, 49, 55);
/* oklch */ color: oklch(31.6% 0.011 285.8);

Tailwind

colors: {
  custom: {
    50: '#69696d',
    500: '#313137',
    950: '#000000',
  },
}

SCSS

$custom: #313137;
$custom-light: #69696d;
$custom-dark: #000000;

JSON

{
  "hex": "#313137",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 240,
    "s": 5.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.31553,
    "c": 0.0106,
    "h": 285.8
  },
  "luminance": 0.03125
}

Semantic roles & 50–950 ramp

primary

#313137

secondary

#66665E

accent

#AF79AF

background

#F6F6F6

surface

#EBEBEB

border

#C6C6C6

text

#060607

muted

#7A7A7A

Preview Lab

Preview with #313137

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

Preview Lab → · Contrast checker → · Palette generator →