#0A131B#0A131B

#0A131B is a very dark, muted cyan. Relative luminance 0.006; OKLCH L 18.2% C 0.021 H 246.1°. Best body text is #FFFFFF at 18.72:1 contrast (WCAG AA passes).

Color values

HEX	#0A131B
RGB	rgb(10, 19, 27)
HSL	hsl(208, 46%, 7%)
HSV	hsv(208, 63%, 11%)
CMYK	cmyk(63%, 29.6%, 0%, 89.4%)
CIE-LAB	lab(5.50, -0.96, -6.48)
CIE-LCH	lch(5.50, 6.55, 261.58°)
OKLab	oklab(18.21% -0.0086 -0.0195)
OKLCH	oklch(18.21% 0.021 246.1)
XYZ	xyz(0.5558, 0.6094, 1.1250)
Luminance	0.0061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A131B #1B120A

analogous

#0A1B1B #0A131B #0A0B1B

triadic

#0A131B #1B0A13 #131B0A

tetradic

#0A131B #1B0A1B #1B120A #0B1B0A

square

#0A131B #1B0A1B #1B120A #0B1B0A

split-complementary

#0A131B #1B0A0B #1B1B0A

monochromatic

#081016 #081016 #0A131B #1B3248 #2B5274

Accessibility & contrast

On white

18.72

#0A131B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A131B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A131B

18.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A131B	#FFFFFF	#000000	##FFFFFF
##0A131B	1.00	18.72	1.12	18.72
#FFFFFF	18.72	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10131B

Deuteranopia (green-blind)

#0E111B

Tritanopia (blue-blind)

#041516

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a131b;
/* rgb */ color: rgb(10, 19, 27);
/* oklch */ color: oklch(18.2% 0.021 246.1);

Tailwind

colors: {
  custom: {
    50: '#4b5057',
    500: '#0a131b',
    950: '#000000',
  },
}

SCSS

$custom: #0a131b;
$custom-light: #4b5057;
$custom-dark: #000000;

JSON

{
  "hex": "#0a131b",
  "rgb": {
    "r": 10,
    "g": 19,
    "b": 27
  },
  "hsl": {
    "h": 208.235,
    "s": 45.946,
    "l": 7.255
  },
  "oklch": {
    "l": 0.18207,
    "c": 0.02136,
    "h": 246.1
  },
  "luminance": 0.00609
}

Semantic roles & 50–950 ramp

primary

#0A131B

secondary

#553F2C

accent

#9052D6

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010203

muted

#777878

Preview Lab

Preview with #0A131B

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

Preview Lab → · Contrast checker → · Palette generator →