#031733#031733

#031733 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 20.7% C 0.062 H 256.3°. Best body text is #FFFFFF at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#031733
RGB	rgb(3, 23, 51)
HSL	hsl(215, 89%, 11%)
HSV	hsv(215, 94%, 20%)
CMYK	cmyk(94.1%, 54.9%, 0%, 80%)
CIE-LAB	lab(7.87, 4.49, -20.89)
CIE-LCH	lch(7.87, 21.36, 282.14°)
OKLab	oklab(20.7% -0.0146 -0.06)
OKLCH	oklch(20.7% 0.062 256.3)
XYZ	xyz(0.9413, 0.8711, 3.2498)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031733 #331F03

analogous

#032F33 #031733 #070333

triadic

#031733 #330317 #173303

tetradic

#031733 #33032F #331F03 #033307

square

#031733 #33032F #331F03 #033307

split-complementary

#031733 #330703 #2F3303

monochromatic

#020D1D #020D1D #031733 #06316D #0A4BA7

Accessibility & contrast

On white

17.88

#031733 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#031733 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031733

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031733	#FFFFFF	#000000	##FFFFFF
##031733	1.00	17.88	1.17	17.88
#FFFFFF	17.88	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081A34

Deuteranopia (green-blind)

#011532

Tritanopia (blue-blind)

#001E22

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #031733;
/* rgb */ color: rgb(3, 23, 51);
/* oklch */ color: oklch(20.7% 0.062 256.3);

Tailwind

colors: {
  custom: {
    50: '#4c536b',
    500: '#031733',
    950: '#000000',
  },
}

SCSS

$custom: #031733;
$custom-light: #4c536b;
$custom-dark: #000000;

JSON

{
  "hex": "#031733",
  "rgb": {
    "r": 3,
    "g": 23,
    "b": 51
  },
  "hsl": {
    "h": 215,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20701,
    "c": 0.06176,
    "h": 256.3
  },
  "luminance": 0.00871
}

Semantic roles & 50–950 ramp

primary

#031733

secondary

#76501C

accent

#A629FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #031733

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

Preview Lab → · Contrast checker → · Palette generator →