#031B47#031B47

#031B47 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.6% C 0.088 H 260.5°. Best body text is #FFFFFF at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#031B47
RGB	rgb(3, 27, 71)
HSL	hsl(219, 92%, 15%)
HSV	hsv(219, 96%, 28%)
CMYK	cmyk(95.8%, 62%, 0%, 72.2%)
CIE-LAB	lab(10.98, 10.95, -30.10)
CIE-LCH	lch(10.98, 32.03, 290.00°)
OKLab	oklab(23.63% -0.0146 -0.087)
OKLCH	oklch(23.63% 0.088 260.5)
XYZ	xyz(1.5664, 1.2580, 6.1203)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031B47 #472F03

analogous

#033D47 #031B47 #0D0347

triadic

#031B47 #47031B #1B4703

tetradic

#031B47 #47033D #472F03 #03470D

square

#031B47 #47033D #472F03 #03470D

split-complementary

#031B47 #470D03 #3D4703

monochromatic

#010B1D #010B1D #031B47 #053182 #0848BC

Accessibility & contrast

On white

16.78

#031B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#031B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031B47

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031B47	#FFFFFF	#000000	##FFFFFF
##031B47	1.00	16.78	1.25	16.78
#FFFFFF	16.78	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001A46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #031b47;
/* rgb */ color: rgb(3, 27, 71);
/* oklch */ color: oklch(23.6% 0.088 260.5);

Tailwind

colors: {
  custom: {
    50: '#52567b',
    500: '#031b47',
    950: '#000000',
  },
}

SCSS

$custom: #031b47;
$custom-light: #52567b;
$custom-dark: #000000;

JSON

{
  "hex": "#031b47",
  "rgb": {
    "r": 3,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 218.824,
    "s": 91.892,
    "l": 14.51
  },
  "oklch": {
    "l": 0.23631,
    "c": 0.08821,
    "h": 260.5
  },
  "luminance": 0.01258
}

Semantic roles & 50–950 ramp

primary

#031B47

secondary

#88631E

accent

#B329FF

background

#F5F5F7

surface

#E8E9EE

border

#C4C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #031B47

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

Preview Lab → · Contrast checker → · Palette generator →