#031538#031538

#031538 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.6% C 0.073 H 260.6°. Best body text is #FFFFFF at 17.98:1 contrast (WCAG AA passes).

Color values

HEX	#031538
RGB	rgb(3, 21, 56)
HSL	hsl(220, 90%, 12%)
HSV	hsv(220, 95%, 22%)
CMYK	cmyk(94.6%, 62.5%, 0%, 78%)
CIE-LAB	lab(7.60, 8.55, -24.95)
CIE-LCH	lch(7.60, 26.38, 288.91°)
OKLab	oklab(20.63% -0.0119 -0.0721)
OKLCH	oklch(20.63% 0.073 260.6)
XYZ	xyz(1.0193, 0.8411, 3.8492)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031538 #382603

analogous

#033038 #031538 #0C0338

triadic

#031538 #380315 #153803

tetradic

#031538 #380330 #382603 #03380C

square

#031538 #380330 #382603 #03380C

split-complementary

#031538 #380C03 #303803

monochromatic

#020B1D #020B1D #031538 #062B72 #0941AC

Accessibility & contrast

On white

17.98

#031538 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#031538 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031538

17.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031538	#FFFFFF	#000000	##FFFFFF
##031538	1.00	17.98	1.17	17.98
#FFFFFF	17.98	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001939

Deuteranopia (green-blind)

#001437

Tritanopia (blue-blind)

#001E23

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #031538;
/* rgb */ color: rgb(3, 21, 56);
/* oklch */ color: oklch(20.6% 0.073 260.6);

Tailwind

colors: {
  custom: {
    50: '#4d516f',
    500: '#031538',
    950: '#000000',
  },
}

SCSS

$custom: #031538;
$custom-light: #4d516f;
$custom-dark: #000000;

JSON

{
  "hex": "#031538",
  "rgb": {
    "r": 3,
    "g": 21,
    "b": 56
  },
  "hsl": {
    "h": 219.623,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.20626,
    "c": 0.07304,
    "h": 260.6
  },
  "luminance": 0.00841
}

Semantic roles & 50–950 ramp

primary

#031538

secondary

#7B5B1C

accent

#B629FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #031538

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

Preview Lab → · Contrast checker → · Palette generator →