#031939#031939

#031939 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.069 H 257.3°. Best body text is #FFFFFF at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#031939
RGB	rgb(3, 25, 57)
HSL	hsl(216, 90%, 12%)
HSV	hsv(216, 95%, 22%)
CMYK	cmyk(94.7%, 56.1%, 0%, 77.6%)
CIE-LAB	lab(9.07, 5.82, -23.29)
CIE-LCH	lch(9.07, 24.00, 284.03°)
OKLab	oklab(21.79% -0.0152 -0.067)
OKLCH	oklch(21.79% 0.069 257.3)
XYZ	xyz(1.1234, 1.0099, 4.0058)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031939 #392303

analogous

#033439 #031939 #080339

triadic

#031939 #390319 #193903

tetradic

#031939 #390334 #392303 #033908

square

#031939 #390334 #392303 #033908

split-complementary

#031939 #390803 #343903

monochromatic

#020D1D #020D1D #031939 #063273 #094CAD

Accessibility & contrast

On white

17.47

#031939 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#031939 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031939

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031939	#FFFFFF	#000000	##FFFFFF
##031939	1.00	17.47	1.20	17.47
#FFFFFF	17.47	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071C3A

Deuteranopia (green-blind)

#001738

Tritanopia (blue-blind)

#002126

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #031939;
/* rgb */ color: rgb(3, 25, 57);
/* oklch */ color: oklch(21.8% 0.069 257.3);

Tailwind

colors: {
  custom: {
    50: '#4e5570',
    500: '#031939',
    950: '#000000',
  },
}

SCSS

$custom: #031939;
$custom-light: #4e5570;
$custom-dark: #000000;

JSON

{
  "hex": "#031939",
  "rgb": {
    "r": 3,
    "g": 25,
    "b": 57
  },
  "hsl": {
    "h": 215.556,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.21789,
    "c": 0.06871,
    "h": 257.3
  },
  "luminance": 0.0101
}

Semantic roles & 50–950 ramp

primary

#031939

secondary

#7C551C

accent

#A829FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #031939

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

Preview Lab → · Contrast checker → · Palette generator →