#0A131D#0A131D

#0A131D is a very dark, muted cyan. Relative luminance 0.006; OKLCH L 18.3% C 0.025 H 251.8°. Best body text is #FFFFFF at 18.69:1 contrast (WCAG AA passes).

Color values

HEX	#0A131D
RGB	rgb(10, 19, 29)
HSL	hsl(212, 49%, 8%)
HSV	hsv(212, 66%, 11%)
CMYK	cmyk(65.5%, 34.5%, 0%, 88.6%)
CIE-LAB	lab(5.59, -0.35, -7.91)
CIE-LCH	lch(5.59, 7.91, 267.46°)
OKLab	oklab(18.33% -0.0077 -0.0235)
OKLCH	oklch(18.33% 0.025 251.8)
XYZ	xyz(0.5797, 0.6189, 1.2511)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A131D #1D140A

analogous

#0A1C1D #0A131D #0A0A1D

triadic

#0A131D #1D0A13 #131D0A

tetradic

#0A131D #1D0A1C #1D140A #0A1D0A

square

#0A131D #1D0A1C #1D140A #0A1D0A

split-complementary

#0A131D #1D0A0A #1C1D0A

monochromatic

#080F17 #080F17 #0A131D #1A314B #294F78

Accessibility & contrast

On white

18.69

#0A131D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A131D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A131D

18.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A131D	#FFFFFF	#000000	##FFFFFF
##0A131D	1.00	18.69	1.12	18.69
#FFFFFF	18.69	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F131D

Deuteranopia (green-blind)

#0D111D

Tritanopia (blue-blind)

#041516

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a131d;
/* rgb */ color: rgb(10, 19, 29);
/* oklch */ color: oklch(18.3% 0.025 251.8);

Tailwind

colors: {
  custom: {
    50: '#4b5058',
    500: '#0a131d',
    950: '#000000',
  },
}

SCSS

$custom: #0a131d;
$custom-light: #4b5058;
$custom-dark: #000000;

JSON

{
  "hex": "#0a131d",
  "rgb": {
    "r": 10,
    "g": 19,
    "b": 29
  },
  "hsl": {
    "h": 211.579,
    "s": 48.718,
    "l": 7.647
  },
  "oklch": {
    "l": 0.18331,
    "c": 0.02471,
    "h": 251.8
  },
  "luminance": 0.00619
}

Semantic roles & 50–950 ramp

primary

#0A131D

secondary

#58432B

accent

#9750D8

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010203

muted

#777878

Preview Lab

Preview with #0A131D

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

Preview Lab → · Contrast checker → · Palette generator →