#031238#031238

#031238 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.9% C 0.078 H 262.8°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#031238
RGB	rgb(3, 18, 56)
HSL	hsl(223, 90%, 12%)
HSV	hsv(223, 95%, 22%)
CMYK	cmyk(94.6%, 67.9%, 0%, 78%)
CIE-LAB	lab(6.66, 10.68, -26.47)
CIE-LCH	lch(6.66, 28.55, 291.97°)
OKLab	oklab(19.86% -0.0097 -0.077)
OKLCH	oklch(19.86% 0.078 262.8)
XYZ	xyz(0.9674, 0.7374, 3.8320)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031238 #382903

analogous

#032D38 #031238 #0F0338

triadic

#031238 #380312 #123803

tetradic

#031238 #38032D #382903 #03380F

square

#031238 #38032D #382903 #03380F

split-complementary

#031238 #380F03 #2D3803

monochromatic

#02091D #02091D #031238 #062572 #0937AC

Accessibility & contrast

On white

18.30

#031238 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#031238 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031238

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031238	#FFFFFF	#000000	##FFFFFF
##031238	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001739

Deuteranopia (green-blind)

#001237

Tritanopia (blue-blind)

#001C22

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #031238;
/* rgb */ color: rgb(3, 18, 56);
/* oklch */ color: oklch(19.9% 0.078 262.8);

Tailwind

colors: {
  custom: {
    50: '#4e4f6f',
    500: '#031238',
    950: '#000000',
  },
}

SCSS

$custom: #031238;
$custom-light: #4e4f6f;
$custom-dark: #000000;

JSON

{
  "hex": "#031238",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 56
  },
  "hsl": {
    "h": 223.019,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.1986,
    "c": 0.07758,
    "h": 262.8
  },
  "luminance": 0.00737
}

Semantic roles & 50–950 ramp

primary

#031238

secondary

#7B601C

accent

#C229FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #031238

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

Preview Lab → · Contrast checker → · Palette generator →