#031B2E#031B2E

#031B2E is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.5% C 0.048 H 245.2°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#031B2E
RGB	rgb(3, 27, 46)
HSL	hsl(207, 88%, 10%)
HSV	hsv(207, 93%, 18%)
CMYK	cmyk(93.5%, 41.3%, 0%, 82%)
CIE-LAB	lab(8.99, -1.09, -15.43)
CIE-LCH	lch(8.99, 15.47, 265.98°)
OKLab	oklab(21.46% -0.0203 -0.0439)
OKLCH	oklch(21.46% 0.048 245.2)
XYZ	xyz(0.9224, 1.0004, 2.7287)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B2E #2E1603

analogous

#032E2C #031B2E #03052E

triadic

#031B2E #2E031B #1B2E03

tetradic

#031B2E #2C032E #2E1603 #052E03

square

#031B2E #2C032E #2E1603 #052E03

split-complementary

#031B2E #2E0305 #2E2C03

monochromatic

#02111D #02111D #031B2E #073D67 #0A5EA1

Accessibility & contrast

On white

17.50

#031B2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#031B2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B2E

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B2E	#FFFFFF	#000000	##FFFFFF
##031B2E	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121C2F

Deuteranopia (green-blind)

#0C182E

Tritanopia (blue-blind)

#002022

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #031b2e;
/* rgb */ color: rgb(3, 27, 46);
/* oklch */ color: oklch(21.5% 0.048 245.2);

Tailwind

colors: {
  custom: {
    50: '#4a5666',
    500: '#031b2e',
    950: '#000000',
  },
}

SCSS

$custom: #031b2e;
$custom-light: #4a5666;
$custom-dark: #000000;

JSON

{
  "hex": "#031b2e",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 46
  },
  "hsl": {
    "h": 206.512,
    "s": 87.755,
    "l": 9.608
  },
  "oklch": {
    "l": 0.21464,
    "c": 0.04837,
    "h": 245.2
  },
  "luminance": 0.01
}

Semantic roles & 50–950 ramp

primary

#031B2E

secondary

#72411B

accent

#882AFE

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010306

muted

#77787A

Preview Lab

Preview with #031B2E

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

Preview Lab → · Contrast checker → · Palette generator →