#0A0438#0A0438

#0A0438 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.4% C 0.095 H 276.5°. Best body text is #FFFFFF at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A0438
RGB	rgb(10, 4, 56)
HSL	hsl(247, 87%, 12%)
HSV	hsv(247, 93%, 22%)
CMYK	cmyk(82.1%, 92.9%, 0%, 78%)
CIE-LAB	lab(3.95, 19.11, -30.85)
CIE-LCH	lch(3.95, 36.28, 301.77°)
OKLab	oklab(17.39% 0.0107 -0.094)
OKLCH	oklch(17.39% 0.095 276.5)
XYZ	xyz(0.8822, 0.4368, 3.7784)
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

#0A0438 #323804

analogous

#041838 #0A0438 #240438

triadic

#0A0438 #380A04 #04380A

tetradic

#0A0438 #380418 #323804 #043824

square

#0A0438 #380418 #323804 #043824

split-complementary

#0A0438 #382404 #183804

monochromatic

#05021D #05021D #0A0438 #140871 #1E0CAA

Accessibility & contrast

On white

19.31

#0A0438 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0A0438 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0438

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0438	#FFFFFF	#000000	##FFFFFF
##0A0438	1.00	19.31	1.09	19.31
#FFFFFF	19.31	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.31	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: #0a0438;
/* rgb */ color: rgb(10, 4, 56);
/* oklch */ color: oklch(17.4% 0.095 276.5);

Tailwind

colors: {
  custom: {
    50: '#50476f',
    500: '#0a0438',
    950: '#000000',
  },
}

SCSS

$custom: #0a0438;
$custom-light: #50476f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0438",
  "rgb": {
    "r": 10,
    "g": 4,
    "b": 56
  },
  "hsl": {
    "h": 246.923,
    "s": 86.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17394,
    "c": 0.09465,
    "h": 276.5
  },
  "luminance": 0.00437
}

Semantic roles & 50–950 ramp

primary

#0A0438

secondary

#6F7A1E

accent

#FD2BE5

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0438

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

Preview Lab → · Contrast checker → · Palette generator →