#0A0B3D#0A0B3D

#0A0B3D is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.4% C 0.092 H 272.9°. Best body text is #FFFFFF at 18.61:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B3D
RGB	rgb(10, 11, 61)
HSL	hsl(239, 72%, 14%)
HSV	hsv(239, 84%, 24%)
CMYK	cmyk(83.6%, 82%, 0%, 76.1%)
CIE-LAB	lab(5.79, 18.74, -31.48)
CIE-LCH	lch(5.79, 36.64, 300.76°)
OKLab	oklab(19.4% 0.0046 -0.0923)
OKLCH	oklch(19.4% 0.092 272.9)
XYZ	xyz(1.0869, 0.6407, 4.4804)
Luminance	0.0064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B3D #3D3C0A

analogous

#0A253D #0A0B3D #230A3D

triadic

#0A0B3D #3D0A0B #0B3D0A

tetradic

#0A0B3D #3D0A25 #3D3C0A #0A3D23

square

#0A0B3D #3D0A25 #3D3C0A #0A3D23

split-complementary

#0A0B3D #3D230A #253D0A

monochromatic

#04051A #04051A #0A0B3D #131472 #1B1EA6

Accessibility & contrast

On white

18.61

#0A0B3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A0B3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B3D

18.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B3D	#FFFFFF	#000000	##FFFFFF
##0A0B3D	1.00	18.61	1.13	18.61
#FFFFFF	18.61	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153E

Deuteranopia (green-blind)

#00103C

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a0b3d;
/* rgb */ color: rgb(10, 11, 61);
/* oklch */ color: oklch(19.4% 0.092 272.9);

Tailwind

colors: {
  custom: {
    50: '#534b73',
    500: '#0a0b3d',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b3d;
$custom-light: #534b73;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b3d",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 61
  },
  "hsl": {
    "h": 238.824,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.19403,
    "c": 0.09241,
    "h": 272.9
  },
  "luminance": 0.00641
}

Semantic roles & 50–950 ramp

primary

#0A0B3D

secondary

#7A7928

accent

#EB39EF

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0B3D

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

Preview Lab → · Contrast checker → · Palette generator →