#0A0838#0A0838

#0A0838 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.089 H 275.0°. Best body text is #FFFFFF at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#0A0838
RGB	rgb(10, 8, 56)
HSL	hsl(243, 75%, 13%)
HSV	hsv(243, 86%, 22%)
CMYK	cmyk(82.1%, 85.7%, 0%, 78%)
CIE-LAB	lab(4.73, 17.42, -29.58)
CIE-LCH	lch(4.73, 34.33, 300.50°)
OKLab	oklab(18.22% 0.0077 -0.0884)
OKLCH	oklch(18.22% 0.089 275)
XYZ	xyz(0.9256, 0.5236, 3.7929)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0838 #363808

analogous

#081E38 #0A0838 #220838

triadic

#0A0838 #380A08 #08380A

tetradic

#0A0838 #38081E #363808 #083822

square

#0A0838 #38081E #363808 #083822

split-complementary

#0A0838 #382208 #1E3808

monochromatic

#05041B #05041B #0A0838 #14106E #1D17A3

Accessibility & contrast

On white

19.01

#0A0838 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0A0838 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0838

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0838	#FFFFFF	#000000	##FFFFFF
##0A0838	1.00	19.01	1.10	19.01
#FFFFFF	19.01	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001239

Deuteranopia (green-blind)

#000E37

Tritanopia (blue-blind)

#00161F

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0a0838;
/* rgb */ color: rgb(10, 8, 56);
/* oklch */ color: oklch(18.2% 0.089 275.0);

Tailwind

colors: {
  custom: {
    50: '#51496f',
    500: '#0a0838',
    950: '#000000',
  },
}

SCSS

$custom: #0a0838;
$custom-light: #51496f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0838",
  "rgb": {
    "r": 10,
    "g": 8,
    "b": 56
  },
  "hsl": {
    "h": 242.5,
    "s": 75,
    "l": 12.549
  },
  "oklch": {
    "l": 0.1822,
    "c": 0.08877,
    "h": 275
  },
  "luminance": 0.00524
}

Semantic roles & 50–950 ramp

primary

#0A0838

secondary

#737725

accent

#F236EA

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #0A0838

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

Preview Lab → · Contrast checker → · Palette generator →