#0A303A#0A303A

#0A303A is a dark, muted cyan. Relative luminance 0.025; OKLCH L 28.8% C 0.045 H 219.1°. Best body text is #FFFFFF at 14.03:1 contrast (WCAG AA passes).

Color values

HEX	#0A303A
RGB	rgb(10, 48, 58)
HSL	hsl(193, 71%, 13%)
HSV	hsv(193, 83%, 23%)
CMYK	cmyk(82.8%, 17.2%, 0%, 77.3%)
CIE-LAB	lab(17.84, -9.11, -10.17)
CIE-LCH	lch(17.84, 13.65, 228.15°)
OKLab	oklab(28.81% -0.0349 -0.0284)
OKLCH	oklch(28.81% 0.045 219.1)
XYZ	xyz(1.9455, 2.4837, 4.3790)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A303A #3A140A

analogous

#0A3A2C #0A303A #0A183A

triadic

#0A303A #3A0A30 #303A0A

tetradic

#0A303A #2C0A3A #3A140A #183A0A

square

#0A303A #2C0A3A #3A140A #183A0A

split-complementary

#0A303A #3A0A18 #3A2C0A

monochromatic

#05161A #05161A #0A303A #135B6E #1C86A2

Accessibility & contrast

On white

14.03

#0A303A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#0A303A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A303A

14.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A303A	#FFFFFF	#000000	##FFFFFF
##0A303A	1.00	14.03	1.50	14.03
#FFFFFF	14.03	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2E3B

Deuteranopia (green-blind)

#232A3A

Tritanopia (blue-blind)

#003333

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0a303a;
/* rgb */ color: rgb(10, 48, 58);
/* oklch */ color: oklch(28.8% 0.045 219.1);

Tailwind

colors: {
  custom: {
    50: '#516870',
    500: '#0a303a',
    950: '#000000',
  },
}

SCSS

$custom: #0a303a;
$custom-light: #516870;
$custom-dark: #000000;

JSON

{
  "hex": "#0a303a",
  "rgb": {
    "r": 10,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 192.5,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2881,
    "c": 0.04497,
    "h": 219.1
  },
  "luminance": 0.02484
}

Semantic roles & 50–950 ramp

primary

#0A303A

secondary

#773928

accent

#603AED

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #0A303A

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

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