#031839#031839

#031839 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.5% C 0.070 H 258.3°. Best body text is #FFFFFF at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#031839
RGB	rgb(3, 24, 57)
HSL	hsl(217, 90%, 12%)
HSV	hsv(217, 95%, 22%)
CMYK	cmyk(94.7%, 57.9%, 0%, 77.6%)
CIE-LAB	lab(8.72, 6.62, -23.86)
CIE-LCH	lch(8.72, 24.76, 285.52°)
OKLab	oklab(21.52% -0.0143 -0.0687)
OKLCH	oklch(21.52% 0.07 258.3)
XYZ	xyz(1.1024, 0.9679, 3.9988)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031839 #392403

analogous

#033339 #031839 #090339

triadic

#031839 #390318 #183903

tetradic

#031839 #390333 #392403 #033909

square

#031839 #390333 #392403 #033909

split-complementary

#031839 #390903 #333903

monochromatic

#020C1D #020C1D #031839 #063073 #0949AD

Accessibility & contrast

On white

17.59

#031839 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#031839 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031839

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031839	#FFFFFF	#000000	##FFFFFF
##031839	1.00	17.59	1.19	17.59
#FFFFFF	17.59	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#051C3A

Deuteranopia (green-blind)

#001738

Tritanopia (blue-blind)

#002025

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #031839;
/* rgb */ color: rgb(3, 24, 57);
/* oklch */ color: oklch(21.5% 0.070 258.3);

Tailwind

colors: {
  custom: {
    50: '#4e5470',
    500: '#031839',
    950: '#000000',
  },
}

SCSS

$custom: #031839;
$custom-light: #4e5470;
$custom-dark: #000000;

JSON

{
  "hex": "#031839",
  "rgb": {
    "r": 3,
    "g": 24,
    "b": 57
  },
  "hsl": {
    "h": 216.667,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.21518,
    "c": 0.07019,
    "h": 258.3
  },
  "luminance": 0.00968
}

Semantic roles & 50–950 ramp

primary

#031839

secondary

#7C571C

accent

#AC29FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #031839

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

Preview Lab → · Contrast checker → · Palette generator →