#031B39#031B39

#031B39 is a very dark, moderate cyan. Relative luminance 0.011; OKLCH L 22.3% C 0.066 H 255.1°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#031B39
RGB	rgb(3, 27, 57)
HSL	hsl(213, 90%, 12%)
HSV	hsv(213, 95%, 22%)
CMYK	cmyk(94.7%, 52.6%, 0%, 77.6%)
CIE-LAB	lab(9.79, 4.22, -22.14)
CIE-LCH	lch(9.79, 22.54, 280.80°)
OKLab	oklab(22.34% -0.017 -0.0636)
OKLCH	oklch(22.34% 0.066 255.1)
XYZ	xyz(1.1677, 1.0985, 4.0206)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B39 #392103

analogous

#033639 #031B39 #060339

triadic

#031B39 #39031B #1B3903

tetradic

#031B39 #390336 #392103 #033906

square

#031B39 #390336 #392103 #033906

split-complementary

#031B39 #390603 #363903

monochromatic

#020E1D #020E1D #031B39 #063773 #0952AD

Accessibility & contrast

On white

17.22

#031B39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#031B39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B39

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B39	#FFFFFF	#000000	##FFFFFF
##031B39	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B1E3A

Deuteranopia (green-blind)

#011938

Tritanopia (blue-blind)

#002227

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #031b39;
/* rgb */ color: rgb(3, 27, 57);
/* oklch */ color: oklch(22.3% 0.066 255.1);

Tailwind

colors: {
  custom: {
    50: '#4d566f',
    500: '#031b39',
    950: '#000000',
  },
}

SCSS

$custom: #031b39;
$custom-light: #4d566f;
$custom-dark: #000000;

JSON

{
  "hex": "#031b39",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 57
  },
  "hsl": {
    "h": 213.333,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22339,
    "c": 0.06582,
    "h": 255.1
  },
  "luminance": 0.01099
}

Semantic roles & 50–950 ramp

primary

#031B39

secondary

#7C511C

accent

#A029FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #031B39

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

Preview Lab → · Contrast checker → · Palette generator →