#0A0B3F#0A0B3F

#0A0B3F is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.7% C 0.095 H 272.5°. Best body text is #FFFFFF at 18.54:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B3F
RGB	rgb(10, 11, 63)
HSL	hsl(239, 73%, 14%)
HSV	hsv(239, 84%, 25%)
CMYK	cmyk(84.1%, 82.5%, 0%, 75.3%)
CIE-LAB	lab(5.99, 19.75, -32.60)
CIE-LCH	lch(5.99, 38.11, 301.21°)
OKLab	oklab(19.65% 0.0042 -0.0953)
OKLCH	oklch(19.65% 0.095 272.5)
XYZ	xyz(1.1417, 0.6626, 4.7694)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 2.54

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B3F #3F3E0A

analogous

#0A263F #0A0B3F #240A3F

triadic

#0A0B3F #3F0A0B #0B3F0A

tetradic

#0A0B3F #3F0A26 #3F3E0A #0A3F24

square

#0A0B3F #3F0A26 #3F3E0A #0A3F24

split-complementary

#0A0B3F #3F240A #263F0A

monochromatic

#04051A #04051A #0A0B3F #121474 #1B1DA9

Accessibility & contrast

On white

18.54

#0A0B3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A0B3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B3F

18.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B3F	#FFFFFF	#000000	##FFFFFF
##0A0B3F	1.00	18.54	1.13	18.54
#FFFFFF	18.54	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001641

Deuteranopia (green-blind)

#00113E

Tritanopia (blue-blind)

#001A24

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a0b3f;
/* rgb */ color: rgb(10, 11, 63);
/* oklch */ color: oklch(19.7% 0.095 272.5);

Tailwind

colors: {
  custom: {
    50: '#534b75',
    500: '#0a0b3f',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b3f;
$custom-light: #534b75;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b3f",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 63
  },
  "hsl": {
    "h": 238.868,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.1965,
    "c": 0.09539,
    "h": 272.5
  },
  "luminance": 0.00663
}

Semantic roles & 50–950 ramp

primary

#0A0B3F

secondary

#7C7B29

accent

#EC38EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0B3F

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

Preview Lab → · Contrast checker → · Palette generator →