#031B3B#031B3B

#031B3B is a very dark, moderate cyan. Relative luminance 0.011; OKLCH L 22.5% C 0.069 H 256.2°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#031B3B
RGB	rgb(3, 27, 59)
HSL	hsl(214, 90%, 12%)
HSV	hsv(214, 95%, 23%)
CMYK	cmyk(94.9%, 54.2%, 0%, 76.9%)
CIE-LAB	lab(9.94, 5.20, -23.32)
CIE-LCH	lch(9.94, 23.89, 282.56°)
OKLab	oklab(22.51% -0.0165 -0.067)
OKLCH	oklch(22.51% 0.069 256.2)
XYZ	xyz(1.2186, 1.1188, 4.2886)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B3B #3B2303

analogous

#03373B #031B3B #07033B

triadic

#031B3B #3B031B #1B3B03

tetradic

#031B3B #3B0337 #3B2303 #033B07

square

#031B3B #3B0337 #3B2303 #033B07

split-complementary

#031B3B #3B0703 #373B03

monochromatic

#010D1D #010D1D #031B3B #063675 #0950AF

Accessibility & contrast

On white

17.16

#031B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#031B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B3B

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B3B	#FFFFFF	#000000	##FFFFFF
##031B3B	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#091E3C

Deuteranopia (green-blind)

#00193A

Tritanopia (blue-blind)

#002328

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #031b3b;
/* rgb */ color: rgb(3, 27, 59);
/* oklch */ color: oklch(22.5% 0.069 256.2);

Tailwind

colors: {
  custom: {
    50: '#4e5671',
    500: '#031b3b',
    950: '#000000',
  },
}

SCSS

$custom: #031b3b;
$custom-light: #4e5671;
$custom-dark: #000000;

JSON

{
  "hex": "#031b3b",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 59
  },
  "hsl": {
    "h": 214.286,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22513,
    "c": 0.06905,
    "h": 256.2
  },
  "luminance": 0.01119
}

Semantic roles & 50–950 ramp

primary

#031B3B

secondary

#7E541C

accent

#A329FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #031B3B

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

Preview Lab → · Contrast checker → · Palette generator →