#0B0438#0B0438

#0B0438 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.5% C 0.094 H 277.6°. Best body text is #FFFFFF at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#0B0438
RGB	rgb(11, 4, 56)
HSL	hsl(248, 87%, 12%)
HSV	hsv(248, 93%, 22%)
CMYK	cmyk(80.4%, 92.9%, 0%, 78%)
CIE-LAB	lab(4.01, 19.35, -30.75)
CIE-LCH	lch(4.01, 36.33, 302.19°)
OKLab	oklab(17.48% 0.0125 -0.0935)
OKLCH	oklch(17.48% 0.094 277.6)
XYZ	xyz(0.8950, 0.4434, 3.7790)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0438 #313804

analogous

#041738 #0B0438 #250438

triadic

#0B0438 #380B04 #04380B

tetradic

#0B0438 #380417 #313804 #043825

square

#0B0438 #380417 #313804 #043825

split-complementary

#0B0438 #382504 #173804

monochromatic

#06021D #06021D #0B0438 #160871 #210CAA

Accessibility & contrast

On white

19.29

#0B0438 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0438 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0438

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0438	#FFFFFF	#000000	##FFFFFF
##0B0438	1.00	19.29	1.09	19.29
#FFFFFF	19.29	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001039

Deuteranopia (green-blind)

#000C37

Tritanopia (blue-blind)

#00131E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0b0438;
/* rgb */ color: rgb(11, 4, 56);
/* oklch */ color: oklch(17.5% 0.094 277.6);

Tailwind

colors: {
  custom: {
    50: '#51476f',
    500: '#0b0438',
    950: '#000000',
  },
}

SCSS

$custom: #0b0438;
$custom-light: #51476f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0438",
  "rgb": {
    "r": 11,
    "g": 4,
    "b": 56
  },
  "hsl": {
    "h": 248.077,
    "s": 86.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17484,
    "c": 0.09438,
    "h": 277.6
  },
  "luminance": 0.00444
}

Semantic roles & 50–950 ramp

primary

#0B0438

secondary

#6E7A1E

accent

#FD2BE1

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0438

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

Preview Lab → · Contrast checker → · Palette generator →