#031129#031129

#031129 is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.1% C 0.054 H 258.3°. Best body text is #FFFFFF at 18.82:1 contrast (WCAG AA passes).

Color values

HEX	#031129
RGB	rgb(3, 17, 41)
HSL	hsl(218, 86%, 9%)
HSV	hsv(218, 93%, 16%)
CMYK	cmyk(92.7%, 58.5%, 0%, 83.9%)
CIE-LAB	lab(5.24, 3.55, -17.65)
CIE-LCH	lch(5.24, 18.00, 281.36°)
OKLab	oklab(18.11% -0.0109 -0.0526)
OKLCH	oklch(18.11% 0.054 258.3)
XYZ	xyz(0.6381, 0.5803, 2.1758)
Luminance	0.0058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031129 #291B03

analogous

#032429 #031129 #080329

triadic

#031129 #290311 #112903

tetradic

#031129 #290324 #291B03 #032908

square

#031129 #290324 #291B03 #032908

split-complementary

#031129 #290803 #242903

monochromatic

#020C1D #020C1D #031129 #072962 #0B409B

Accessibility & contrast

On white

18.82

#031129 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#031129 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031129

18.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031129	#FFFFFF	#000000	##FFFFFF
##031129	1.00	18.82	1.12	18.82
#FFFFFF	18.82	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05132A

Deuteranopia (green-blind)

#001029

Tritanopia (blue-blind)

#00171A

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #031129;
/* rgb */ color: rgb(3, 17, 41);
/* oklch */ color: oklch(18.1% 0.054 258.3);

Tailwind

colors: {
  custom: {
    50: '#494f63',
    500: '#031129',
    950: '#000000',
  },
}

SCSS

$custom: #031129;
$custom-light: #494f63;
$custom-dark: #000000;

JSON

{
  "hex": "#031129",
  "rgb": {
    "r": 3,
    "g": 17,
    "b": 41
  },
  "hsl": {
    "h": 217.895,
    "s": 86.364,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18105,
    "c": 0.05376,
    "h": 258.3
  },
  "luminance": 0.0058
}

Semantic roles & 50–950 ramp

primary

#031129

secondary

#6D4F1B

accent

#AF2BFD

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #031129

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

Preview Lab → · Contrast checker → · Palette generator →