#031333#031333

#031333 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.6% C 0.068 H 260.7°. Best body text is #FFFFFF at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#031333
RGB	rgb(3, 19, 51)
HSL	hsl(220, 89%, 11%)
HSV	hsv(220, 94%, 20%)
CMYK	cmyk(94.1%, 62.7%, 0%, 80%)
CIE-LAB	lab(6.54, 7.34, -23.02)
CIE-LCH	lch(6.54, 24.16, 287.70°)
OKLab	oklab(19.61% -0.011 -0.0669)
OKLCH	oklch(19.61% 0.068 260.7)
XYZ	xyz(0.8677, 0.7240, 3.2253)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031333 #332303

analogous

#032B33 #031333 #0B0333

triadic

#031333 #330313 #133303

tetradic

#031333 #33032B #332303 #03330B

square

#031333 #33032B #332303 #03330B

split-complementary

#031333 #330B03 #2B3303

monochromatic

#020B1D #020B1D #031333 #06296D #0A3EA7

Accessibility & contrast

On white

18.34

#031333 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#031333 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031333

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031333	#FFFFFF	#000000	##FFFFFF
##031333	1.00	18.34	1.14	18.34
#FFFFFF	18.34	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011734

Deuteranopia (green-blind)

#001232

Tritanopia (blue-blind)

#001B20

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #031333;
/* rgb */ color: rgb(3, 19, 51);
/* oklch */ color: oklch(19.6% 0.068 260.7);

Tailwind

colors: {
  custom: {
    50: '#4c506b',
    500: '#031333',
    950: '#000000',
  },
}

SCSS

$custom: #031333;
$custom-light: #4c506b;
$custom-dark: #000000;

JSON

{
  "hex": "#031333",
  "rgb": {
    "r": 3,
    "g": 19,
    "b": 51
  },
  "hsl": {
    "h": 220,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.19607,
    "c": 0.06779,
    "h": 260.7
  },
  "luminance": 0.00724
}

Semantic roles & 50–950 ramp

primary

#031333

secondary

#76581C

accent

#B829FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #031333

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

Preview Lab → · Contrast checker → · Palette generator →