#031B2D#031B2D

#031B2D is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.4% C 0.047 H 243.8°. Best body text is #FFFFFF at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#031B2D
RGB	rgb(3, 27, 45)
HSL	hsl(206, 88%, 9%)
HSV	hsv(206, 93%, 18%)
CMYK	cmyk(93.3%, 40%, 0%, 82.4%)
CIE-LAB	lab(8.93, -1.56, -14.80)
CIE-LCH	lch(8.93, 14.88, 263.99°)
OKLab	oklab(21.39% -0.0207 -0.0421)
OKLCH	oklch(21.39% 0.047 243.8)
XYZ	xyz(0.9030, 0.9926, 2.6261)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B2D #2D1503

analogous

#032D2A #031B2D #03062D

triadic

#031B2D #2D031B #1B2D03

tetradic

#031B2D #2A032D #2D1503 #062D03

square

#031B2D #2A032D #2D1503 #062D03

split-complementary

#031B2D #2D0306 #2D2A03

monochromatic

#02111D #02111D #031B2D #073D66 #0B60A0

Accessibility & contrast

On white

17.52

#031B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#031B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B2D

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B2D	#FFFFFF	#000000	##FFFFFF
##031B2D	1.00	17.52	1.20	17.52
#FFFFFF	17.52	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131C2E

Deuteranopia (green-blind)

#0C182D

Tritanopia (blue-blind)

#001F21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #031b2d;
/* rgb */ color: rgb(3, 27, 45);
/* oklch */ color: oklch(21.4% 0.047 243.8);

Tailwind

colors: {
  custom: {
    50: '#4a5766',
    500: '#031b2d',
    950: '#000000',
  },
}

SCSS

$custom: #031b2d;
$custom-light: #4a5766;
$custom-dark: #000000;

JSON

{
  "hex": "#031b2d",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 45
  },
  "hsl": {
    "h": 205.714,
    "s": 87.5,
    "l": 9.412
  },
  "oklch": {
    "l": 0.21391,
    "c": 0.04687,
    "h": 243.8
  },
  "luminance": 0.00993
}

Semantic roles & 50–950 ramp

primary

#031B2D

secondary

#71401B

accent

#852AFE

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010305

muted

#77787A

Preview Lab

Preview with #031B2D

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

Preview Lab → · Contrast checker → · Palette generator →