#031639#031639

#031639 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.0% C 0.073 H 260.1°. Best body text is #FFFFFF at 17.83:1 contrast (WCAG AA passes).

Color values

HEX	#031639
RGB	rgb(3, 22, 57)
HSL	hsl(219, 90%, 12%)
HSV	hsv(219, 95%, 22%)
CMYK	cmyk(94.7%, 61.4%, 0%, 77.6%)
CIE-LAB	lab(8.03, 8.25, -24.98)
CIE-LCH	lch(8.03, 26.31, 288.27°)
OKLab	oklab(20.99% -0.0126 -0.0721)
OKLCH	oklch(20.99% 0.073 260.1)
XYZ	xyz(1.0627, 0.8885, 3.9856)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031639 #392603

analogous

#033139 #031639 #0B0339

triadic

#031639 #390316 #163903

tetradic

#031639 #390331 #392603 #03390B

square

#031639 #390331 #392603 #03390B

split-complementary

#031639 #390B03 #313903

monochromatic

#020B1D #020B1D #031639 #062C73 #0943AD

Accessibility & contrast

On white

17.83

#031639 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#031639 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031639

17.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031639	#FFFFFF	#000000	##FFFFFF
##031639	1.00	17.83	1.18	17.83
#FFFFFF	17.83	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011A3A

Deuteranopia (green-blind)

#001538

Tritanopia (blue-blind)

#001F24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #031639;
/* rgb */ color: rgb(3, 22, 57);
/* oklch */ color: oklch(21.0% 0.073 260.1);

Tailwind

colors: {
  custom: {
    50: '#4e5270',
    500: '#031639',
    950: '#000000',
  },
}

SCSS

$custom: #031639;
$custom-light: #4e5270;
$custom-dark: #000000;

JSON

{
  "hex": "#031639",
  "rgb": {
    "r": 3,
    "g": 22,
    "b": 57
  },
  "hsl": {
    "h": 218.889,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.20986,
    "c": 0.07318,
    "h": 260.1
  },
  "luminance": 0.00889
}

Semantic roles & 50–950 ramp

primary

#031639

secondary

#7C5A1C

accent

#B429FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #031639

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

Preview Lab → · Contrast checker → · Palette generator →