#0A0A3D#0A0A3D

#0A0A3D is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.2% C 0.094 H 273.2°. Best body text is #FFFFFF at 18.69:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A3D
RGB	rgb(10, 10, 61)
HSL	hsl(240, 72%, 14%)
HSV	hsv(240, 84%, 24%)
CMYK	cmyk(83.6%, 83.6%, 0%, 76.1%)
CIE-LAB	lab(5.59, 19.22, -31.81)
CIE-LCH	lch(5.59, 37.16, 301.13°)
OKLab	oklab(19.22% 0.0052 -0.0935)
OKLCH	oklch(19.22% 0.094 273.2)
XYZ	xyz(1.0757, 0.6184, 4.4766)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A3D #3D3D0A

analogous

#0A243D #0A0A3D #240A3D

triadic

#0A0A3D #3D0A0A #0A3D0A

tetradic

#0A0A3D #3D0A24 #3D3D0A #0A3D24

square

#0A0A3D #3D0A24 #3D3D0A #0A3D24

split-complementary

#0A0A3D #3D240A #243D0A

monochromatic

#04041A #04041A #0A0A3D #131372 #1B1BA6

Accessibility & contrast

On white

18.69

#0A0A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A0A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A3D

18.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A3D	#FFFFFF	#000000	##FFFFFF
##0A0A3D	1.00	18.69	1.12	18.69
#FFFFFF	18.69	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153E

Deuteranopia (green-blind)

#00103C

Tritanopia (blue-blind)

#001922

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a0a3d;
/* rgb */ color: rgb(10, 10, 61);
/* oklch */ color: oklch(19.2% 0.094 273.2);

Tailwind

colors: {
  custom: {
    50: '#534a73',
    500: '#0a0a3d',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a3d;
$custom-light: #534a73;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a3d",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 61
  },
  "hsl": {
    "h": 240,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.19223,
    "c": 0.09365,
    "h": 273.2
  },
  "luminance": 0.00619
}

Semantic roles & 50–950 ramp

primary

#0A0A3D

secondary

#7A7A28

accent

#EF39EF

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0A3D

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

Preview Lab → · Contrast checker → · Palette generator →