#0A113B#0A113B

#0A113B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.4% C 0.081 H 270.2°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#0A113B
RGB	rgb(10, 17, 59)
HSL	hsl(231, 71%, 14%)
HSV	hsv(231, 83%, 23%)
CMYK	cmyk(83.1%, 71.2%, 0%, 76.9%)
CIE-LAB	lab(7.06, 14.23, -27.98)
CIE-LCH	lch(7.06, 31.39, 296.95°)
OKLab	oklab(20.41% 0.0003 -0.081)
OKLCH	oklch(20.41% 0.081 270.2)
XYZ	xyz(1.1148, 0.7811, 4.2288)
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

#0A113B #3B340A

analogous

#0A293B #0A113B #1B0A3B

triadic

#0A113B #3B0A11 #113B0A

tetradic

#0A113B #3B0A29 #3B340A #0A3B1B

square

#0A113B #3B0A29 #3B340A #0A3B1B

split-complementary

#0A113B #3B1B0A #293B0A

monochromatic

#04081A #04081A #0A113B #13206F #1C2FA4

Accessibility & contrast

On white

18.16

#0A113B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A113B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A113B

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A113B	#FFFFFF	#000000	##FFFFFF
##0A113B	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#001C23

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a113b;
/* rgb */ color: rgb(10, 17, 59);
/* oklch */ color: oklch(20.4% 0.081 270.2);

Tailwind

colors: {
  custom: {
    50: '#524e71',
    500: '#0a113b',
    950: '#000000',
  },
}

SCSS

$custom: #0a113b;
$custom-light: #524e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a113b",
  "rgb": {
    "r": 10,
    "g": 17,
    "b": 59
  },
  "hsl": {
    "h": 231.429,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20406,
    "c": 0.08099,
    "h": 270.2
  },
  "luminance": 0.00781
}

Semantic roles & 50–950 ramp

primary

#0A113B

secondary

#786D28

accent

#D43AEE

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020108

muted

#78777B

Preview Lab

Preview with #0A113B

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

Preview Lab → · Contrast checker → · Palette generator →