#0A112A#0A112A

#0A112A is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.7% C 0.052 H 269.2°. Best body text is #FFFFFF at 18.64:1 contrast (WCAG AA passes).

Color values

HEX	#0A112A
RGB	rgb(10, 17, 42)
HSL	hsl(227, 62%, 10%)
HSV	hsv(227, 76%, 16%)
CMYK	cmyk(76.2%, 59.5%, 0%, 83.5%)
CIE-LAB	lab(5.71, 5.83, -17.63)
CIE-LCH	lch(5.71, 18.57, 288.28°)
OKLab	oklab(18.74% -0.0007 -0.0517)
OKLCH	oklch(18.74% 0.052 269.2)
XYZ	xyz(0.7434, 0.6325, 2.2730)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A112A #2A230A

analogous

#0A212A #0A112A #130A2A

triadic

#0A112A #2A0A11 #112A0A

tetradic

#0A112A #2A0A21 #2A230A #0A2A13

square

#0A112A #2A0A21 #2A230A #0A2A13

split-complementary

#0A112A #2A130A #212A0A

monochromatic

#060A19 #060A19 #0A112A #16255B #22398D

Accessibility & contrast

On white

18.64

#0A112A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A112A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A112A

18.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A112A	#FFFFFF	#000000	##FFFFFF
##0A112A	1.00	18.64	1.13	18.64
#FFFFFF	18.64	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05142B

Deuteranopia (green-blind)

#021129

Tritanopia (blue-blind)

#00171B

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a112a;
/* rgb */ color: rgb(10, 17, 42);
/* oklch */ color: oklch(18.7% 0.052 269.2);

Tailwind

colors: {
  custom: {
    50: '#4c4f63',
    500: '#0a112a',
    950: '#000000',
  },
}

SCSS

$custom: #0a112a;
$custom-light: #4c4f63;
$custom-dark: #000000;

JSON

{
  "hex": "#0a112a",
  "rgb": {
    "r": 10,
    "g": 17,
    "b": 42
  },
  "hsl": {
    "h": 226.875,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18742,
    "c": 0.0517,
    "h": 269.2
  },
  "luminance": 0.00633
}

Semantic roles & 50–950 ramp

primary

#0A112A

secondary

#675929

accent

#C143E5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #0A112A

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

Preview Lab → · Contrast checker → · Palette generator →