#0A232A#0A232A

#0A232A is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 24.0% C 0.033 H 219.1°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#0A232A
RGB	rgb(10, 35, 42)
HSL	hsl(193, 62%, 10%)
HSV	hsv(193, 76%, 16%)
CMYK	cmyk(76.2%, 16.7%, 0%, 83.5%)
CIE-LAB	lab(12.18, -6.88, -7.54)
CIE-LCH	lch(12.18, 10.21, 227.64°)
OKLab	oklab(24.02% -0.0258 -0.021)
OKLCH	oklch(24.02% 0.033 219.1)
XYZ	xyz(1.1440, 1.4336, 2.4065)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A232A #2A110A

analogous

#0A2A21 #0A232A #0A132A

triadic

#0A232A #2A0A23 #232A0A

tetradic

#0A232A #210A2A #2A110A #132A0A

square

#0A232A #210A2A #2A110A #132A0A

split-complementary

#0A232A #2A0A13 #2A210A

monochromatic

#061519 #061519 #0A232A #164C5B #22758D

Accessibility & contrast

On white

16.32

#0A232A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0A232A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A232A

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A232A	#FFFFFF	#000000	##FFFFFF
##0A232A	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F222A

Deuteranopia (green-blind)

#1A1E2A

Tritanopia (blue-blind)

#002525

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a232a;
/* rgb */ color: rgb(10, 35, 42);
/* oklch */ color: oklch(24.0% 0.033 219.1);

Tailwind

colors: {
  custom: {
    50: '#4d5d63',
    500: '#0a232a',
    950: '#000000',
  },
}

SCSS

$custom: #0a232a;
$custom-light: #4d5d63;
$custom-dark: #000000;

JSON

{
  "hex": "#0a232a",
  "rgb": {
    "r": 10,
    "g": 35,
    "b": 42
  },
  "hsl": {
    "h": 193.125,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.24018,
    "c": 0.03325,
    "h": 219.1
  },
  "luminance": 0.01434
}

Semantic roles & 50–950 ramp

primary

#0A232A

secondary

#673629

accent

#6643E5

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #0A232A

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

Preview Lab → · Contrast checker → · Palette generator →