#031F3A#031F3A

#031F3A is a very dark, moderate cyan. Relative luminance 0.013; OKLCH L 23.5% C 0.062 H 250.6°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#031F3A
RGB	rgb(3, 31, 58)
HSL	hsl(209, 90%, 12%)
HSV	hsv(209, 95%, 23%)
CMYK	cmyk(94.8%, 46.6%, 0%, 77.3%)
CIE-LAB	lab(11.31, 1.59, -20.42)
CIE-LCH	lch(11.31, 20.48, 274.45°)
OKLab	oklab(23.55% -0.0205 -0.0584)
OKLCH	oklch(23.55% 0.062 250.6)
XYZ	xyz(1.2910, 1.3047, 4.1859)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031F3A #3A1E03

analogous

#033A3A #031F3A #03033A

triadic

#031F3A #3A031F #1F3A03

tetradic

#031F3A #3A033A #3A1E03 #033A03

square

#031F3A #3A033A #3A1E03 #033A03

split-complementary

#031F3A #3A0303 #3A3A03

monochromatic

#02101D #02101D #031F3A #063E74 #095DAE

Accessibility & contrast

On white

16.65

#031F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#031F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031F3A

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031F3A	#FFFFFF	#000000	##FFFFFF
##031F3A	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12213B

Deuteranopia (green-blind)

#081C39

Tritanopia (blue-blind)

#002529

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #031f3a;
/* rgb */ color: rgb(3, 31, 58);
/* oklch */ color: oklch(23.5% 0.062 250.6);

Tailwind

colors: {
  custom: {
    50: '#4e5a70',
    500: '#031f3a',
    950: '#000000',
  },
}

SCSS

$custom: #031f3a;
$custom-light: #4e5a70;
$custom-dark: #000000;

JSON

{
  "hex": "#031f3a",
  "rgb": {
    "r": 3,
    "g": 31,
    "b": 58
  },
  "hsl": {
    "h": 209.455,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.23548,
    "c": 0.06193,
    "h": 250.6
  },
  "luminance": 0.01305
}

Semantic roles & 50–950 ramp

primary

#031F3A

secondary

#7D4C1C

accent

#9229FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #031F3A

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

Preview Lab → · Contrast checker → · Palette generator →