#0A223B#0A223B

#0A223B is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.8% C 0.056 H 251.9°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#0A223B
RGB	rgb(10, 34, 59)
HSL	hsl(211, 71%, 14%)
HSV	hsv(211, 83%, 23%)
CMYK	cmyk(83.1%, 42.4%, 0%, 76.9%)
CIE-LAB	lab(12.76, 1.06, -18.80)
CIE-LCH	lch(12.76, 18.83, 273.24°)
OKLab	oklab(24.79% -0.0175 -0.0535)
OKLCH	oklch(24.79% 0.056 251.9)
XYZ	xyz(1.4863, 1.5242, 4.3527)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A223B #3B230A

analogous

#0A3A3B #0A223B #0A0A3B

triadic

#0A223B #3B0A22 #223B0A

tetradic

#0A223B #3B0A3A #3B230A #0A3B0A

square

#0A223B #3B0A3A #3B230A #0A3B0A

split-complementary

#0A223B #3B0A0A #3A3B0A

monochromatic

#040F1A #040F1A #0A223B #13406F #1C5EA4

Accessibility & contrast

On white

16.09

#0A223B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0A223B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A223B

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A223B	#FFFFFF	#000000	##FFFFFF
##0A223B	1.00	16.09	1.30	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17243C

Deuteranopia (green-blind)

#0F1F3B

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0a223b;
/* rgb */ color: rgb(10, 34, 59);
/* oklch */ color: oklch(24.8% 0.056 251.9);

Tailwind

colors: {
  custom: {
    50: '#515c71',
    500: '#0a223b',
    950: '#000000',
  },
}

SCSS

$custom: #0a223b;
$custom-light: #515c71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a223b",
  "rgb": {
    "r": 10,
    "g": 34,
    "b": 59
  },
  "hsl": {
    "h": 210.612,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24792,
    "c": 0.05626,
    "h": 251.9
  },
  "luminance": 0.01524
}

Semantic roles & 50–950 ramp

primary

#0A223B

secondary

#785128

accent

#963AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A223B

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

Preview Lab → · Contrast checker → · Palette generator →