#031B2C#031B2C

#031B2C is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.3% C 0.045 H 242.4°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#031B2C
RGB	rgb(3, 27, 44)
HSL	hsl(205, 87%, 9%)
HSV	hsv(205, 93%, 17%)
CMYK	cmyk(93.2%, 38.6%, 0%, 82.7%)
CIE-LAB	lab(8.87, -2.03, -14.17)
CIE-LCH	lch(8.87, 14.31, 261.83°)
OKLab	oklab(21.32% -0.0211 -0.0402)
OKLCH	oklch(21.32% 0.045 242.4)
XYZ	xyz(0.8839, 0.9850, 2.5259)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B2C #2C1403

analogous

#032C29 #031B2C #03072C

triadic

#031B2C #2C031B #1B2C03

tetradic

#031B2C #29032C #2C1403 #072C03

square

#031B2C #29032C #2C1403 #072C03

split-complementary

#031B2C #2C0307 #2C2903

monochromatic

#02121D #02121D #031B2C #073E65 #0B619F

Accessibility & contrast

On white

17.54

#031B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#031B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B2C

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B2C	#FFFFFF	#000000	##FFFFFF
##031B2C	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131B2D

Deuteranopia (green-blind)

#0D172C

Tritanopia (blue-blind)

#001F21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #031b2c;
/* rgb */ color: rgb(3, 27, 44);
/* oklch */ color: oklch(21.3% 0.045 242.4);

Tailwind

colors: {
  custom: {
    50: '#4a5765',
    500: '#031b2c',
    950: '#000000',
  },
}

SCSS

$custom: #031b2c;
$custom-light: #4a5765;
$custom-dark: #000000;

JSON

{
  "hex": "#031b2c",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 44
  },
  "hsl": {
    "h": 204.878,
    "s": 87.234,
    "l": 9.216
  },
  "oklch": {
    "l": 0.2132,
    "c": 0.04538,
    "h": 242.4
  },
  "luminance": 0.00985
}

Semantic roles & 50–950 ramp

primary

#031B2C

secondary

#703E1B

accent

#822AFD

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010305

muted

#77787A

Preview Lab

Preview with #031B2C

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

Preview Lab → · Contrast checker → · Palette generator →