#31373F#31373F

#31373F is a dark, near-neutral cyan. Relative luminance 0.037; OKLCH L 33.4% C 0.016 H 255.6°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#31373F
RGB	rgb(49, 55, 63)
HSL	hsl(214, 13%, 22%)
HSV	hsv(214, 22%, 25%)
CMYK	cmyk(22.2%, 12.7%, 0%, 75.3%)
CIE-LAB	lab(22.81, -0.45, -5.83)
CIE-LCH	lch(22.81, 5.85, 265.56°)
OKLab	oklab(33.43% -0.0041 -0.0158)
OKLCH	oklch(33.43% 0.016 255.6)
XYZ	xyz(3.5298, 3.7441, 5.2384)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31373F #3F3931

analogous

#313E3F #31373F #32313F

triadic

#31373F #3F3137 #373F31

tetradic

#31373F #3F313E #3F3931 #313F32

square

#31373F #3F313E #3F3931 #313F32

split-complementary

#31373F #3F3231 #3E3F31

monochromatic

#0D0F11 #16191D #31373F #4C5561 #677384

Accessibility & contrast

On white

12.01

#31373F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#31373F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31373F

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31373F	#FFFFFF	#000000	##FFFFFF
##31373F	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34373F

Deuteranopia (green-blind)

#33363F

Tritanopia (blue-blind)

#2D393A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31373f;
/* rgb */ color: rgb(49, 55, 63);
/* oklch */ color: oklch(33.4% 0.016 255.6);

Tailwind

colors: {
  custom: {
    50: '#696d74',
    500: '#31373f',
    950: '#000000',
  },
}

SCSS

$custom: #31373f;
$custom-light: #696d74;
$custom-dark: #000000;

JSON

{
  "hex": "#31373f",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 63
  },
  "hsl": {
    "h": 214.286,
    "s": 12.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33432,
    "c": 0.01634,
    "h": 255.6
  },
  "luminance": 0.03744
}

Semantic roles & 50–950 ramp

primary

#31373F

secondary

#6F675D

accent

#9972B5

background

#F6F6F7

surface

#EBEBED

border

#C6C6C8

text

#060708

muted

#7A7A7B

Preview Lab

Preview with #31373F

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

Preview Lab → · Contrast checker → · Palette generator →