#0A0A3E#0A0A3E

#0A0A3E is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.3% C 0.095 H 273.0°. Best body text is #FFFFFF at 18.65:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A3E
RGB	rgb(10, 10, 62)
HSL	hsl(240, 72%, 14%)
HSV	hsv(240, 84%, 24%)
CMYK	cmyk(83.9%, 83.9%, 0%, 75.7%)
CIE-LAB	lab(5.68, 19.73, -32.37)
CIE-LCH	lch(5.68, 37.91, 301.36°)
OKLab	oklab(19.35% 0.005 -0.095)
OKLCH	oklch(19.35% 0.095 273)
XYZ	xyz(1.1029, 0.6293, 4.6198)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A3E #3E3E0A

analogous

#0A243E #0A0A3E #240A3E

triadic

#0A0A3E #3E0A0A #0A3E0A

tetradic

#0A0A3E #3E0A24 #3E3E0A #0A3E24

square

#0A0A3E #3E0A24 #3E3E0A #0A3E24

split-complementary

#0A0A3E #3E240A #243E0A

monochromatic

#04041A #04041A #0A0A3E #131373 #1B1BA7

Accessibility & contrast

On white

18.65

#0A0A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A0A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A3E

18.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A3E	#FFFFFF	#000000	##FFFFFF
##0A0A3E	1.00	18.65	1.13	18.65
#FFFFFF	18.65	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001540

Deuteranopia (green-blind)

#00103D

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a0a3e;
/* rgb */ color: rgb(10, 10, 62);
/* oklch */ color: oklch(19.3% 0.095 273.0);

Tailwind

colors: {
  custom: {
    50: '#534a74',
    500: '#0a0a3e',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a3e;
$custom-light: #534a74;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a3e",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 62
  },
  "hsl": {
    "h": 240,
    "s": 72.222,
    "l": 14.118
  },
  "oklch": {
    "l": 0.19348,
    "c": 0.09513,
    "h": 273
  },
  "luminance": 0.00629
}

Semantic roles & 50–950 ramp

primary

#0A0A3E

secondary

#7B7B28

accent

#EF39EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0A3E

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

Preview Lab → · Contrast checker → · Palette generator →