#0A113A#0A113A

#0A113A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.3% C 0.079 H 270.2°. Best body text is #FFFFFF at 18.19:1 contrast (WCAG AA passes).

Color values

HEX	#0A113A
RGB	rgb(10, 17, 58)
HSL	hsl(231, 71%, 13%)
HSV	hsv(231, 83%, 23%)
CMYK	cmyk(82.8%, 70.7%, 0%, 77.3%)
CIE-LAB	lab(6.96, 13.75, -27.41)
CIE-LCH	lch(6.96, 30.66, 296.63°)
OKLab	oklab(20.3% 0.0003 -0.0794)
OKLCH	oklch(20.3% 0.079 270.2)
XYZ	xyz(1.0891, 0.7708, 4.0936)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A113A #3A330A

analogous

#0A293A #0A113A #1B0A3A

triadic

#0A113A #3A0A11 #113A0A

tetradic

#0A113A #3A0A29 #3A330A #0A3A1B

square

#0A113A #3A0A29 #3A330A #0A3A1B

split-complementary

#0A113A #3A1B0A #293A0A

monochromatic

#05081A #05081A #0A113A #13206E #1C30A2

Accessibility & contrast

On white

18.19

#0A113A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A113A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A113A

18.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A113A	#FFFFFF	#000000	##FFFFFF
##0A113A	1.00	18.19	1.15	18.19
#FFFFFF	18.19	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a113a;
/* rgb */ color: rgb(10, 17, 58);
/* oklch */ color: oklch(20.3% 0.079 270.2);

Tailwind

colors: {
  custom: {
    50: '#514e71',
    500: '#0a113a',
    950: '#000000',
  },
}

SCSS

$custom: #0a113a;
$custom-light: #514e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a113a",
  "rgb": {
    "r": 10,
    "g": 17,
    "b": 58
  },
  "hsl": {
    "h": 231.25,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.203,
    "c": 0.07936,
    "h": 270.2
  },
  "luminance": 0.00771
}

Semantic roles & 50–950 ramp

primary

#0A113A

secondary

#776C28

accent

#D33AED

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #0A113A

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

Preview Lab → · Contrast checker → · Palette generator →