#0A0538#0A0538

#0A0538 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.6% C 0.093 H 276.1°. Best body text is #FFFFFF at 19.23:1 contrast (WCAG AA passes).

Color values

HEX	#0A0538
RGB	rgb(10, 5, 56)
HSL	hsl(246, 84%, 12%)
HSV	hsv(246, 91%, 22%)
CMYK	cmyk(82.1%, 91.1%, 0%, 78%)
CIE-LAB	lab(4.14, 18.69, -30.53)
CIE-LCH	lch(4.14, 35.79, 301.47°)
OKLab	oklab(17.61% 0.01 -0.0926)
OKLCH	oklch(17.61% 0.093 276.1)
XYZ	xyz(0.8930, 0.4585, 3.7821)
Luminance	0.0046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0538 #333805

analogous

#051A38 #0A0538 #240538

triadic

#0A0538 #380A05 #05380A

tetradic

#0A0538 #38051A #333805 #053824

square

#0A0538 #38051A #333805 #053824

split-complementary

#0A0538 #382405 #1A3805

monochromatic

#05031C #05031C #0A0538 #140A70 #1E0FA8

Accessibility & contrast

On white

19.23

#0A0538 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0A0538 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0538

19.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0538	#FFFFFF	#000000	##FFFFFF
##0A0538	1.00	19.23	1.09	19.23
#FFFFFF	19.23	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001139

Deuteranopia (green-blind)

#000C37

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0a0538;
/* rgb */ color: rgb(10, 5, 56);
/* oklch */ color: oklch(17.6% 0.093 276.1);

Tailwind

colors: {
  custom: {
    50: '#50486f',
    500: '#0a0538',
    950: '#000000',
  },
}

SCSS

$custom: #0a0538;
$custom-light: #50486f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0538",
  "rgb": {
    "r": 10,
    "g": 5,
    "b": 56
  },
  "hsl": {
    "h": 245.882,
    "s": 83.607,
    "l": 11.961
  },
  "oklch": {
    "l": 0.17608,
    "c": 0.09313,
    "h": 276.1
  },
  "luminance": 0.00459
}

Semantic roles & 50–950 ramp

primary

#0A0538

secondary

#707920

accent

#FA2EE6

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0538

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

Preview Lab → · Contrast checker → · Palette generator →