#0A121D#0A121D

#0A121D is a very dark, muted cyan. Relative luminance 0.006; OKLCH L 18.0% C 0.026 H 256.5°. Best body text is #FFFFFF at 18.80:1 contrast (WCAG AA passes).

Color values

HEX	#0A121D
RGB	rgb(10, 18, 29)
HSL	hsl(215, 49%, 8%)
HSV	hsv(215, 66%, 11%)
CMYK	cmyk(65.5%, 37.9%, 0%, 88.6%)
CIE-LAB	lab(5.29, 0.26, -8.36)
CIE-LCH	lch(5.29, 8.36, 271.80°)
OKLab	oklab(18.03% -0.006 -0.0252)
OKLCH	oklch(18.03% 0.026 256.5)
XYZ	xyz(0.5632, 0.5858, 1.2456)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A121D #1D150A

analogous

#0A1B1D #0A121D #0B0A1D

triadic

#0A121D #1D0A12 #121D0A

tetradic

#0A121D #1D0A1B #1D150A #0A1D0B

square

#0A121D #1D0A1B #1D150A #0A1D0B

split-complementary

#0A121D #1D0B0A #1B1D0A

monochromatic

#080E17 #080E17 #0A121D #1A2E4B #294A78

Accessibility & contrast

On white

18.80

#0A121D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A121D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A121D

18.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A121D	#FFFFFF	#000000	##FFFFFF
##0A121D	1.00	18.80	1.12	18.80
#FFFFFF	18.80	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E131D

Deuteranopia (green-blind)

#0C111D

Tritanopia (blue-blind)

#041416

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a121d;
/* rgb */ color: rgb(10, 18, 29);
/* oklch */ color: oklch(18.0% 0.026 256.5);

Tailwind

colors: {
  custom: {
    50: '#4b5058',
    500: '#0a121d',
    950: '#000000',
  },
}

SCSS

$custom: #0a121d;
$custom-light: #4b5058;
$custom-dark: #000000;

JSON

{
  "hex": "#0a121d",
  "rgb": {
    "r": 10,
    "g": 18,
    "b": 29
  },
  "hsl": {
    "h": 214.737,
    "s": 48.718,
    "l": 7.647
  },
  "oklch": {
    "l": 0.18027,
    "c": 0.02591,
    "h": 256.5
  },
  "luminance": 0.00586
}

Semantic roles & 50–950 ramp

primary

#0A121D

secondary

#58452B

accent

#9F50D8

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010203

muted

#777878

Preview Lab

Preview with #0A121D

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

Preview Lab → · Contrast checker → · Palette generator →