#031B2F#031B2F

#031B2F is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.5% C 0.050 H 246.4°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#031B2F
RGB	rgb(3, 27, 47)
HSL	hsl(207, 88%, 10%)
HSV	hsv(207, 94%, 18%)
CMYK	cmyk(93.6%, 42.6%, 0%, 81.6%)
CIE-LAB	lab(9.06, -0.60, -16.06)
CIE-LCH	lch(9.06, 16.07, 267.85°)
OKLab	oklab(21.54% -0.0199 -0.0457)
OKLCH	oklch(21.54% 0.05 246.4)
XYZ	xyz(0.9424, 1.0083, 2.8337)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B2F #2F1703

analogous

#032F2D #031B2F #03052F

triadic

#031B2F #2F031B #1B2F03

tetradic

#031B2F #2D032F #2F1703 #052F03

square

#031B2F #2D032F #2F1703 #052F03

split-complementary

#031B2F #2F0305 #2F2D03

monochromatic

#02111D #02111D #031B2F #073C69 #0A5DA2

Accessibility & contrast

On white

17.48

#031B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#031B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B2F

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B2F	#FFFFFF	#000000	##FFFFFF
##031B2F	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121C30

Deuteranopia (green-blind)

#0B182F

Tritanopia (blue-blind)

#002022

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #031b2f;
/* rgb */ color: rgb(3, 27, 47);
/* oklch */ color: oklch(21.5% 0.050 246.4);

Tailwind

colors: {
  custom: {
    50: '#4a5667',
    500: '#031b2f',
    950: '#000000',
  },
}

SCSS

$custom: #031b2f;
$custom-light: #4a5667;
$custom-dark: #000000;

JSON

{
  "hex": "#031b2f",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 207.273,
    "s": 88,
    "l": 9.804
  },
  "oklch": {
    "l": 0.21538,
    "c": 0.04989,
    "h": 246.4
  },
  "luminance": 0.01008
}

Semantic roles & 50–950 ramp

primary

#031B2F

secondary

#73431B

accent

#8A2AFE

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010306

muted

#77787A

Preview Lab

Preview with #031B2F

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

Preview Lab → · Contrast checker → · Palette generator →