#0A182A#0A182A

#0A182A is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.7% C 0.041 H 255.4°. Best body text is #FFFFFF at 17.84:1 contrast (WCAG AA passes).

Color values

HEX	#0A182A
RGB	rgb(10, 24, 42)
HSL	hsl(214, 62%, 10%)
HSV	hsv(214, 76%, 16%)
CMYK	cmyk(76.2%, 42.9%, 0%, 83.5%)
CIE-LAB	lab(7.99, 1.16, -14.04)
CIE-LCH	lch(7.99, 14.09, 274.71°)
OKLab	oklab(20.7% -0.0103 -0.0397)
OKLCH	oklch(20.7% 0.041 255.4)
XYZ	xyz(0.8696, 0.8849, 2.3150)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A182A #2A1C0A

analogous

#0A282A #0A182A #0C0A2A

triadic

#0A182A #2A0A18 #182A0A

tetradic

#0A182A #2A0A28 #2A1C0A #0A2A0C

square

#0A182A #2A0A28 #2A1C0A #0A2A0C

split-complementary

#0A182A #2A0C0A #282A0A

monochromatic

#060E19 #060E19 #0A182A #16345B #22508D

Accessibility & contrast

On white

17.84

#0A182A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A182A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A182A

17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A182A	#FFFFFF	#000000	##FFFFFF
##0A182A	1.00	17.84	1.18	17.84
#FFFFFF	17.84	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10192B

Deuteranopia (green-blind)

#0C162A

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a182a;
/* rgb */ color: rgb(10, 24, 42);
/* oklch */ color: oklch(20.7% 0.041 255.4);

Tailwind

colors: {
  custom: {
    50: '#4d5463',
    500: '#0a182a',
    950: '#000000',
  },
}

SCSS

$custom: #0a182a;
$custom-light: #4d5463;
$custom-dark: #000000;

JSON

{
  "hex": "#0a182a",
  "rgb": {
    "r": 10,
    "g": 24,
    "b": 42
  },
  "hsl": {
    "h": 213.75,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20702,
    "c": 0.04106,
    "h": 255.4
  },
  "luminance": 0.00885
}

Semantic roles & 50–950 ramp

primary

#0A182A

secondary

#674C29

accent

#9E43E5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010205

muted

#777879

Preview Lab

Preview with #0A182A

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

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