#0A2A3F#0A2A3F

#0A2A3F is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.3% C 0.054 H 241.6°. Best body text is #FFFFFF at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A2A3F
RGB	rgb(10, 42, 63)
HSL	hsl(204, 73%, 14%)
HSV	hsv(204, 84%, 25%)
CMYK	cmyk(84.1%, 33.3%, 0%, 75.3%)
CIE-LAB	lab(15.90, -2.99, -16.65)
CIE-LCH	lch(15.90, 16.92, 259.82°)
OKLab	oklab(27.34% -0.0254 -0.0471)
OKLCH	oklch(27.34% 0.054 241.6)
XYZ	xyz(1.8500, 2.0791, 5.0055)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2A3F #3F1F0A

analogous

#0A3F3A #0A2A3F #0A0F3F

triadic

#0A2A3F #3F0A2A #2A3F0A

tetradic

#0A2A3F #3A0A3F #3F1F0A #0F3F0A

square

#0A2A3F #3A0A3F #3F1F0A #0F3F0A

split-complementary

#0A2A3F #3F0A0F #3F3A0A

monochromatic

#04121A #04121A #0A2A3F #124D74 #1B70A9

Accessibility & contrast

On white

14.83

#0A2A3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0A2A3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A3F

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2A3F	#FFFFFF	#000000	##FFFFFF
##0A2A3F	1.00	14.83	1.42	14.83
#FFFFFF	14.83	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202A40

Deuteranopia (green-blind)

#19253F

Tritanopia (blue-blind)

#002F31

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0a2a3f;
/* rgb */ color: rgb(10, 42, 63);
/* oklch */ color: oklch(27.3% 0.054 241.6);

Tailwind

colors: {
  custom: {
    50: '#526374',
    500: '#0a2a3f',
    950: '#000000',
  },
}

SCSS

$custom: #0a2a3f;
$custom-light: #526374;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2a3f",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 63
  },
  "hsl": {
    "h": 203.774,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.27341,
    "c": 0.05352,
    "h": 241.6
  },
  "luminance": 0.02079
}

Semantic roles & 50–950 ramp

primary

#0A2A3F

secondary

#7C4A29

accent

#8138EF

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#020508

muted

#78797B

Preview Lab

Preview with #0A2A3F

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

Preview Lab → · Contrast checker → · Palette generator →