#0A223A#0A223A

#0A223A is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.7% C 0.055 H 251.0°. Best body text is #FFFFFF at 16.12:1 contrast (WCAG AA passes).

Color values

HEX	#0A223A
RGB	rgb(10, 34, 58)
HSL	hsl(210, 71%, 13%)
HSV	hsv(210, 83%, 23%)
CMYK	cmyk(82.8%, 41.4%, 0%, 77.3%)
CIE-LAB	lab(12.70, 0.62, -18.19)
CIE-LCH	lch(12.70, 18.20, 271.95°)
OKLab	oklab(24.72% -0.0178 -0.0517)
OKLCH	oklch(24.72% 0.055 251)
XYZ	xyz(1.4606, 1.5139, 4.2174)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A223A #3A220A

analogous

#0A3A3A #0A223A #0A0A3A

triadic

#0A223A #3A0A22 #223A0A

tetradic

#0A223A #3A0A3A #3A220A #0A3A0A

square

#0A223A #3A0A3A #3A220A #0A3A0A

split-complementary

#0A223A #3A0A0A #3A3A0A

monochromatic

#050F1A #050F1A #0A223A #13416E #1C5FA2

Accessibility & contrast

On white

16.12

#0A223A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0A223A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A223A

16.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A223A	#FFFFFF	#000000	##FFFFFF
##0A223A	1.00	16.12	1.30	16.12
#FFFFFF	16.12	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17233B

Deuteranopia (green-blind)

#101F3A

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0a223a;
/* rgb */ color: rgb(10, 34, 58);
/* oklch */ color: oklch(24.7% 0.055 251.0);

Tailwind

colors: {
  custom: {
    50: '#515c70',
    500: '#0a223a',
    950: '#000000',
  },
}

SCSS

$custom: #0a223a;
$custom-light: #515c70;
$custom-dark: #000000;

JSON

{
  "hex": "#0a223a",
  "rgb": {
    "r": 10,
    "g": 34,
    "b": 58
  },
  "hsl": {
    "h": 210,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2472,
    "c": 0.05468,
    "h": 251
  },
  "luminance": 0.01514
}

Semantic roles & 50–950 ramp

primary

#0A223A

secondary

#775028

accent

#943AED

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A223A

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

Preview Lab → · Contrast checker → · Palette generator →