#031239#031239

#031239 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.0% C 0.079 H 263.0°. Best body text is #FFFFFF at 18.27:1 contrast (WCAG AA passes).

Color values

HEX	#031239
RGB	rgb(3, 18, 57)
HSL	hsl(223, 90%, 12%)
HSV	hsv(223, 95%, 22%)
CMYK	cmyk(94.7%, 68.4%, 0%, 77.6%)
CIE-LAB	lab(6.75, 11.21, -27.05)
CIE-LCH	lch(6.75, 29.28, 292.51°)
OKLab	oklab(19.97% -0.0096 -0.0786)
OKLCH	oklch(19.97% 0.079 263)
XYZ	xyz(0.9921, 0.7473, 3.9620)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031239 #392A03

analogous

#032D39 #031239 #0F0339

triadic

#031239 #390312 #123903

tetradic

#031239 #39032D #392A03 #03390F

square

#031239 #39032D #392A03 #03390F

split-complementary

#031239 #390F03 #2D3903

monochromatic

#02091D #02091D #031239 #062473 #0937AD

Accessibility & contrast

On white

18.27

#031239 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#031239 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031239

18.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031239	#FFFFFF	#000000	##FFFFFF
##031239	1.00	18.27	1.15	18.27
#FFFFFF	18.27	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183A

Deuteranopia (green-blind)

#001238

Tritanopia (blue-blind)

#001C23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #031239;
/* rgb */ color: rgb(3, 18, 57);
/* oklch */ color: oklch(20.0% 0.079 263.0);

Tailwind

colors: {
  custom: {
    50: '#4e4f70',
    500: '#031239',
    950: '#000000',
  },
}

SCSS

$custom: #031239;
$custom-light: #4e4f70;
$custom-dark: #000000;

JSON

{
  "hex": "#031239",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 57
  },
  "hsl": {
    "h": 223.333,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.19967,
    "c": 0.0792,
    "h": 263
  },
  "luminance": 0.00747
}

Semantic roles & 50–950 ramp

primary

#031239

secondary

#7C611C

accent

#C329FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #031239

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

Preview Lab → · Contrast checker → · Palette generator →