#0A0837#0A0837

#0A0837 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.087 H 275.2°. Best body text is #FFFFFF at 19.04:1 contrast (WCAG AA passes).

Color values

HEX	#0A0837
RGB	rgb(10, 8, 55)
HSL	hsl(243, 75%, 12%)
HSV	hsv(243, 85%, 22%)
CMYK	cmyk(81.8%, 85.5%, 0%, 78.4%)
CIE-LAB	lab(4.64, 16.86, -28.99)
CIE-LCH	lch(4.64, 33.54, 300.18°)
OKLab	oklab(18.09% 0.0079 -0.0869)
OKLCH	oklch(18.09% 0.087 275.2)
XYZ	xyz(0.9014, 0.5139, 3.6654)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0837 #353708

analogous

#081E37 #0A0837 #220837

triadic

#0A0837 #370A08 #08370A

tetradic

#0A0837 #37081E #353708 #083722

square

#0A0837 #37081E #353708 #083722

split-complementary

#0A0837 #372208 #1E3708

monochromatic

#05041B #05041B #0A0837 #14106C #1D18A2

Accessibility & contrast

On white

19.04

#0A0837 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0A0837 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0837

19.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0837	#FFFFFF	#000000	##FFFFFF
##0A0837	1.00	19.04	1.10	19.04
#FFFFFF	19.04	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001238

Deuteranopia (green-blind)

#000E36

Tritanopia (blue-blind)

#00151E

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0a0837;
/* rgb */ color: rgb(10, 8, 55);
/* oklch */ color: oklch(18.1% 0.087 275.2);

Tailwind

colors: {
  custom: {
    50: '#50496e',
    500: '#0a0837',
    950: '#000000',
  },
}

SCSS

$custom: #0a0837;
$custom-light: #50496e;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0837",
  "rgb": {
    "r": 10,
    "g": 8,
    "b": 55
  },
  "hsl": {
    "h": 242.553,
    "s": 74.603,
    "l": 12.353
  },
  "oklch": {
    "l": 0.18094,
    "c": 0.08727,
    "h": 275.2
  },
  "luminance": 0.00514
}

Semantic roles & 50–950 ramp

primary

#0A0837

secondary

#727625

accent

#F137E9

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #0A0837

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

Preview Lab → · Contrast checker → · Palette generator →