#0A0A4A#0A0A4A

#0A0A4A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.112 H 271.2°. Best body text is #FFFFFF at 18.18:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A4A
RGB	rgb(10, 10, 74)
HSL	hsl(240, 76%, 16%)
HSV	hsv(240, 86%, 29%)
CMYK	cmyk(86.5%, 86.5%, 0%, 71%)
CIE-LAB	lab(7.01, 25.38, -38.69)
CIE-LCH	lch(7.01, 46.27, 303.26°)
OKLab	oklab(20.9% 0.0023 -0.1122)
OKLCH	oklch(20.9% 0.112 271.2)
XYZ	xyz(1.4693, 0.7759, 6.5496)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A4A #4A4A0A

analogous

#0A2A4A #0A0A4A #2A0A4A

triadic

#0A0A4A #4A0A0A #0A4A0A

tetradic

#0A0A4A #4A0A2A #4A4A0A #0A4A2A

square

#0A0A4A #4A0A2A #4A4A0A #0A4A2A

split-complementary

#0A0A4A #4A2A0A #2A4A0A

monochromatic

#04041B #04041B #0A0A4A #111180 #1919B6

Accessibility & contrast

On white

18.18

#0A0A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A0A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A4A

18.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A4A	#FFFFFF	#000000	##FFFFFF
##0A0A4A	1.00	18.18	1.16	18.18
#FFFFFF	18.18	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00194C

Deuteranopia (green-blind)

#001249

Tritanopia (blue-blind)

#001E2A

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a0a4a;
/* rgb */ color: rgb(10, 10, 74);
/* oklch */ color: oklch(20.9% 0.112 271.2);

Tailwind

colors: {
  custom: {
    50: '#574a7d',
    500: '#0a0a4a',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a4a;
$custom-light: #574a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a4a",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 74
  },
  "hsl": {
    "h": 240,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.20898,
    "c": 0.11227,
    "h": 271.2
  },
  "luminance": 0.00776
}

Semantic roles & 50–950 ramp

primary

#0A0A4A

secondary

#878729

accent

#F335F3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #0A0A4A

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

Preview Lab → · Contrast checker → · Palette generator →