#31383F#31383F

#31383F is a dark, near-neutral cyan. Relative luminance 0.038; OKLCH L 33.7% C 0.016 H 248.3°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#31383F
RGB	rgb(49, 56, 63)
HSL	hsl(210, 13%, 22%)
HSV	hsv(210, 22%, 25%)
CMYK	cmyk(22.2%, 11.1%, 0%, 75.3%)
CIE-LAB	lab(23.14, -1.12, -5.34)
CIE-LCH	lch(23.14, 5.46, 258.17°)
OKLab	oklab(33.69% -0.0058 -0.0145)
OKLCH	oklch(33.69% 0.016 248.3)
XYZ	xyz(3.5778, 3.8401, 5.2544)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31383F #3F3831

analogous

#313F3F #31383F #31313F

triadic

#31383F #3F3138 #383F31

tetradic

#31383F #3F313F #3F3831 #313F31

square

#31383F #3F313F #3F3831 #313F31

split-complementary

#31383F #3F3131 #3F3F31

monochromatic

#0D0F11 #16191D #31383F #4C5761 #677584

Accessibility & contrast

On white

11.88

#31383F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#31383F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31383F

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31383F	#FFFFFF	#000000	##FFFFFF
##31383F	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35383F

Deuteranopia (green-blind)

#34373F

Tritanopia (blue-blind)

#2D3A3A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #31383f;
/* rgb */ color: rgb(49, 56, 63);
/* oklch */ color: oklch(33.7% 0.016 248.3);

Tailwind

colors: {
  custom: {
    50: '#696e74',
    500: '#31383f',
    950: '#000000',
  },
}

SCSS

$custom: #31383f;
$custom-light: #696e74;
$custom-dark: #000000;

JSON

{
  "hex": "#31383f",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 63
  },
  "hsl": {
    "h": 210,
    "s": 12.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33691,
    "c": 0.01559,
    "h": 248.3
  },
  "luminance": 0.0384
}

Semantic roles & 50–950 ramp

primary

#31383F

secondary

#6F665D

accent

#9472B5

background

#F6F6F7

surface

#EBEBED

border

#C6C6C8

text

#060708

muted

#7A7A7B

Preview Lab

Preview with #31383F

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

Preview Lab → · Contrast checker → · Palette generator →