#0A0B4A#0A0B4A

#0A0B4A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.1% C 0.111 H 271.0°. Best body text is #FFFFFF at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B4A
RGB	rgb(10, 11, 74)
HSL	hsl(239, 76%, 16%)
HSV	hsv(239, 86%, 29%)
CMYK	cmyk(86.5%, 85.1%, 0%, 71%)
CIE-LAB	lab(7.21, 24.83, -38.36)
CIE-LCH	lch(7.21, 45.70, 302.91°)
OKLab	oklab(21.05% 0.002 -0.1112)
OKLCH	oklch(21.05% 0.111 271)
XYZ	xyz(1.4805, 0.7981, 6.5533)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B4A #4A490A

analogous

#0A2B4A #0A0B4A #290A4A

triadic

#0A0B4A #4A0A0B #0B4A0A

tetradic

#0A0B4A #4A0A2B #4A490A #0A4A29

square

#0A0B4A #4A0A2B #4A490A #0A4A29

split-complementary

#0A0B4A #4A290A #2B4A0A

monochromatic

#04041B #04041B #0A0B4A #111380 #191BB6

Accessibility & contrast

On white

18.11

#0A0B4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A0B4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B4A

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B4A	#FFFFFF	#000000	##FFFFFF
##0A0B4A	1.00	18.11	1.16	18.11
#FFFFFF	18.11	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00194C

Deuteranopia (green-blind)

#001349

Tritanopia (blue-blind)

#001E2A

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a0b4a;
/* rgb */ color: rgb(10, 11, 74);
/* oklch */ color: oklch(21.1% 0.111 271.0);

Tailwind

colors: {
  custom: {
    50: '#574b7d',
    500: '#0a0b4a',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b4a;
$custom-light: #574b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b4a",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 74
  },
  "hsl": {
    "h": 239.063,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.21051,
    "c": 0.11124,
    "h": 271
  },
  "luminance": 0.00798
}

Semantic roles & 50–950 ramp

primary

#0A0B4A

secondary

#878529

accent

#F035F3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #0A0B4A

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

Preview Lab → · Contrast checker → · Palette generator →