#031D2B#031D2B

#031D2B is a very dark, muted cyan. Relative luminance 0.011; OKLCH L 21.9% C 0.042 H 235.6°. Best body text is #FFFFFF at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#031D2B
RGB	rgb(3, 29, 43)
HSL	hsl(201, 87%, 9%)
HSV	hsv(201, 93%, 17%)
CMYK	cmyk(93%, 32.6%, 0%, 83.1%)
CIE-LAB	lab(9.58, -3.98, -12.31)
CIE-LCH	lch(9.58, 12.94, 252.08°)
OKLab	oklab(21.87% -0.0238 -0.0348)
OKLCH	oklch(21.87% 0.042 235.6)
XYZ	xyz(0.9128, 1.0724, 2.4439)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031D2B #2B1103

analogous

#032B25 #031D2B #03092B

triadic

#031D2B #2B031D #1D2B03

tetradic

#031D2B #25032B #2B1103 #092B03

square

#031D2B #25032B #2B1103 #092B03

split-complementary

#031D2B #2B0309 #2B2503

monochromatic

#02131D #02131D #031D2B #074464 #0B6A9D

Accessibility & contrast

On white

17.29

#031D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#031D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031D2B

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031D2B	#FFFFFF	#000000	##FFFFFF
##031D2B	1.00	17.29	1.21	17.29
#FFFFFF	17.29	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161D2C

Deuteranopia (green-blind)

#11192B

Tritanopia (blue-blind)

#002122

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #031d2b;
/* rgb */ color: rgb(3, 29, 43);
/* oklch */ color: oklch(21.9% 0.042 235.6);

Tailwind

colors: {
  custom: {
    50: '#495864',
    500: '#031d2b',
    950: '#000000',
  },
}

SCSS

$custom: #031d2b;
$custom-light: #495864;
$custom-dark: #000000;

JSON

{
  "hex": "#031d2b",
  "rgb": {
    "r": 3,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 201,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.21867,
    "c": 0.04216,
    "h": 235.6
  },
  "luminance": 0.01073
}

Semantic roles & 50–950 ramp

primary

#031D2B

secondary

#6F381B

accent

#742BFD

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010305

muted

#777879

Preview Lab

Preview with #031D2B

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

Preview Lab → · Contrast checker → · Palette generator →