#0A232F#0A232F

#0A232F is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.3% C 0.038 H 232.2°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#0A232F
RGB	rgb(10, 35, 47)
HSL	hsl(199, 65%, 11%)
HSV	hsv(199, 79%, 18%)
CMYK	cmyk(78.7%, 25.5%, 0%, 81.6%)
CIE-LAB	lab(12.43, -4.85, -10.77)
CIE-LCH	lch(12.43, 11.81, 245.74°)
OKLab	oklab(24.3% -0.0234 -0.0302)
OKLCH	oklch(24.3% 0.038 232.2)
XYZ	xyz(1.2391, 1.4717, 2.9075)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A232F #2F160A

analogous

#0A2F28 #0A232F #0A102F

triadic

#0A232F #2F0A23 #232F0A

tetradic

#0A232F #280A2F #2F160A #102F0A

square

#0A232F #280A2F #2F160A #102F0A

split-complementary

#0A232F #2F0A10 #2F280A

monochromatic

#051319 #051319 #0A232F #154961 #1F6E94

Accessibility & contrast

On white

16.22

#0A232F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0A232F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A232F

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A232F	#FFFFFF	#000000	##FFFFFF
##0A232F	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2230

Deuteranopia (green-blind)

#181F2F

Tritanopia (blue-blind)

#002627

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a232f;
/* rgb */ color: rgb(10, 35, 47);
/* oklch */ color: oklch(24.3% 0.038 232.2);

Tailwind

colors: {
  custom: {
    50: '#4e5d67',
    500: '#0a232f',
    950: '#000000',
  },
}

SCSS

$custom: #0a232f;
$custom-light: #4e5d67;
$custom-dark: #000000;

JSON

{
  "hex": "#0a232f",
  "rgb": {
    "r": 10,
    "g": 35,
    "b": 47
  },
  "hsl": {
    "h": 199.459,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.24297,
    "c": 0.03816,
    "h": 232.2
  },
  "luminance": 0.01472
}

Semantic roles & 50–950 ramp

primary

#0A232F

secondary

#6C3F29

accent

#7640E8

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020406

muted

#78797A

Preview Lab

Preview with #0A232F

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

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