#031337#031337

#031337 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.0% C 0.074 H 261.9°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#031337
RGB	rgb(3, 19, 55)
HSL	hsl(222, 90%, 11%)
HSV	hsv(222, 95%, 22%)
CMYK	cmyk(94.5%, 65.5%, 0%, 78.4%)
CIE-LAB	lab(6.87, 9.49, -25.40)
CIE-LCH	lch(6.87, 27.12, 290.48°)
OKLab	oklab(20.01% -0.0105 -0.0737)
OKLCH	oklch(20.01% 0.074 261.9)
XYZ	xyz(0.9598, 0.7608, 3.7100)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031337 #372703

analogous

#032D37 #031337 #0D0337

triadic

#031337 #370313 #133703

tetradic

#031337 #37032D #372703 #03370D

square

#031337 #37032D #372703 #03370D

split-complementary

#031337 #370D03 #2D3703

monochromatic

#020A1D #020A1D #031337 #062771 #093BAB

Accessibility & contrast

On white

18.23

#031337 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#031337 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031337

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031337	#FFFFFF	#000000	##FFFFFF
##031337	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001838

Deuteranopia (green-blind)

#001336

Tritanopia (blue-blind)

#001C22

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #031337;
/* rgb */ color: rgb(3, 19, 55);
/* oklch */ color: oklch(20.0% 0.074 261.9);

Tailwind

colors: {
  custom: {
    50: '#4d506e',
    500: '#031337',
    950: '#000000',
  },
}

SCSS

$custom: #031337;
$custom-light: #4d506e;
$custom-dark: #000000;

JSON

{
  "hex": "#031337",
  "rgb": {
    "r": 3,
    "g": 19,
    "b": 55
  },
  "hsl": {
    "h": 221.538,
    "s": 89.655,
    "l": 11.373
  },
  "oklch": {
    "l": 0.20008,
    "c": 0.07443,
    "h": 261.9
  },
  "luminance": 0.00761
}

Semantic roles & 50–950 ramp

primary

#031337

secondary

#7A5D1C

accent

#BD29FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #031337

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

Preview Lab → · Contrast checker → · Palette generator →