#031E3B#031E3B

#031E3B is a very dark, moderate cyan. Relative luminance 0.013; OKLCH L 23.3% C 0.065 H 252.7°. Best body text is #FFFFFF at 16.76:1 contrast (WCAG AA passes).

Color values

HEX	#031E3B
RGB	rgb(3, 30, 59)
HSL	hsl(211, 90%, 12%)
HSV	hsv(211, 95%, 23%)
CMYK	cmyk(94.9%, 49.2%, 0%, 76.9%)
CIE-LAB	lab(11.02, 2.84, -21.59)
CIE-LCH	lch(11.02, 21.78, 277.49°)
OKLab	oklab(23.35% -0.0193 -0.0619)
OKLCH	oklch(23.35% 0.065 252.7)
XYZ	xyz(1.2909, 1.2635, 4.3127)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031E3B #3B2003

analogous

#033A3B #031E3B #04033B

triadic

#031E3B #3B031E #1E3B03

tetradic

#031E3B #3B033A #3B2003 #033B04

square

#031E3B #3B033A #3B2003 #033B04

split-complementary

#031E3B #3B0403 #3A3B03

monochromatic

#010F1D #010F1D #031E3B #063C75 #0959AF

Accessibility & contrast

On white

16.76

#031E3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#031E3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031E3B

16.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031E3B	#FFFFFF	#000000	##FFFFFF
##031E3B	1.00	16.76	1.25	16.76
#FFFFFF	16.76	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F203C

Deuteranopia (green-blind)

#051B3A

Tritanopia (blue-blind)

#002529

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #031e3b;
/* rgb */ color: rgb(3, 30, 59);
/* oklch */ color: oklch(23.3% 0.065 252.7);

Tailwind

colors: {
  custom: {
    50: '#4e5971',
    500: '#031e3b',
    950: '#000000',
  },
}

SCSS

$custom: #031e3b;
$custom-light: #4e5971;
$custom-dark: #000000;

JSON

{
  "hex": "#031e3b",
  "rgb": {
    "r": 3,
    "g": 30,
    "b": 59
  },
  "hsl": {
    "h": 211.071,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.23345,
    "c": 0.06484,
    "h": 252.7
  },
  "luminance": 0.01264
}

Semantic roles & 50–950 ramp

primary

#031E3B

secondary

#7E4F1C

accent

#9829FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #031E3B

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

Preview Lab → · Contrast checker → · Palette generator →