#0A0B42#0A0B42

#0A0B42 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.0% C 0.100 H 272.1°. Best body text is #FFFFFF at 18.43:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B42
RGB	rgb(10, 11, 66)
HSL	hsl(239, 74%, 15%)
HSV	hsv(239, 85%, 26%)
CMYK	cmyk(84.8%, 83.3%, 0%, 74.1%)
CIE-LAB	lab(6.30, 21.21, -34.23)
CIE-LCH	lch(6.30, 40.27, 301.79°)
OKLab	oklab(20.03% 0.0037 -0.0997)
OKLCH	oklch(20.03% 0.1 272.1)
XYZ	xyz(1.2279, 0.6971, 5.2230)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B42 #42410A

analogous

#0A2742 #0A0B42 #250A42

triadic

#0A0B42 #420A0B #0B420A

tetradic

#0A0B42 #420A27 #42410A #0A4225

square

#0A0B42 #420A27 #42410A #0A4225

split-complementary

#0A0B42 #42250A #27420A

monochromatic

#04041B #04041B #0A0B42 #121477 #1A1DAC

Accessibility & contrast

On white

18.43

#0A0B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#0A0B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B42

18.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B42	#FFFFFF	#000000	##FFFFFF
##0A0B42	1.00	18.43	1.14	18.43
#FFFFFF	18.43	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001744

Deuteranopia (green-blind)

#001141

Tritanopia (blue-blind)

#001B25

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #0a0b42;
/* rgb */ color: rgb(10, 11, 66);
/* oklch */ color: oklch(20.0% 0.100 272.1);

Tailwind

colors: {
  custom: {
    50: '#544b77',
    500: '#0a0b42',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b42;
$custom-light: #544b77;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b42",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 66
  },
  "hsl": {
    "h": 238.929,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.20025,
    "c": 0.09982,
    "h": 272.1
  },
  "luminance": 0.00697
}

Semantic roles & 50–950 ramp

primary

#0A0B42

secondary

#7F7E29

accent

#ED37F0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A0B42

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

Preview Lab → · Contrast checker → · Palette generator →