#031B31#031B31

#031B31 is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.7% C 0.053 H 248.7°. Best body text is #FFFFFF at 17.43:1 contrast (WCAG AA passes).

Color values

HEX	#031B31
RGB	rgb(3, 27, 49)
HSL	hsl(209, 88%, 10%)
HSV	hsv(209, 94%, 19%)
CMYK	cmyk(93.9%, 44.9%, 0%, 80.8%)
CIE-LAB	lab(9.20, 0.35, -17.30)
CIE-LCH	lch(9.20, 17.31, 271.16°)
OKLab	oklab(21.69% -0.0192 -0.0494)
OKLCH	oklch(21.69% 0.053 248.7)
XYZ	xyz(0.9836, 1.0249, 3.0511)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B31 #311903

analogous

#033130 #031B31 #030431

triadic

#031B31 #31031B #1B3103

tetradic

#031B31 #300331 #311903 #043103

square

#031B31 #300331 #311903 #043103

split-complementary

#031B31 #310304 #313003

monochromatic

#02101D #02101D #031B31 #073B6B #0A5BA4

Accessibility & contrast

On white

17.43

#031B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#031B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B31

17.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B31	#FFFFFF	#000000	##FFFFFF
##031B31	1.00	17.43	1.21	17.43
#FFFFFF	17.43	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101C32

Deuteranopia (green-blind)

#091831

Tritanopia (blue-blind)

#002023

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #031b31;
/* rgb */ color: rgb(3, 27, 49);
/* oklch */ color: oklch(21.7% 0.053 248.7);

Tailwind

colors: {
  custom: {
    50: '#4b5669',
    500: '#031b31',
    950: '#000000',
  },
}

SCSS

$custom: #031b31;
$custom-light: #4b5669;
$custom-dark: #000000;

JSON

{
  "hex": "#031b31",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 49
  },
  "hsl": {
    "h": 208.696,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.21689,
    "c": 0.053,
    "h": 248.7
  },
  "luminance": 0.01025
}

Semantic roles & 50–950 ramp

primary

#031B31

secondary

#74461B

accent

#8F29FF

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010306

muted

#77787A

Preview Lab

Preview with #031B31

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

Preview Lab → · Contrast checker → · Palette generator →