#0A2A3E#0A2A3E

#0A2A3E is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.3% C 0.052 H 240.3°. Best body text is #FFFFFF at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#0A2A3E
RGB	rgb(10, 42, 62)
HSL	hsl(203, 72%, 14%)
HSV	hsv(203, 84%, 24%)
CMYK	cmyk(83.9%, 32.3%, 0%, 75.7%)
CIE-LAB	lab(15.84, -3.42, -16.05)
CIE-LCH	lch(15.84, 16.41, 257.96°)
OKLab	oklab(27.28% -0.0258 -0.0453)
OKLCH	oklch(27.28% 0.052 240.3)
XYZ	xyz(1.8223, 2.0681, 4.8596)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2A3E #3E1E0A

analogous

#0A3E38 #0A2A3E #0A103E

triadic

#0A2A3E #3E0A2A #2A3E0A

tetradic

#0A2A3E #380A3E #3E1E0A #103E0A

square

#0A2A3E #380A3E #3E1E0A #103E0A

split-complementary

#0A2A3E #3E0A10 #3E380A

monochromatic

#04121A #04121A #0A2A3E #134E73 #1B71A7

Accessibility & contrast

On white

14.86

#0A2A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#0A2A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A3E

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2A3E	#FFFFFF	#000000	##FFFFFF
##0A2A3E	1.00	14.86	1.41	14.86
#FFFFFF	14.86	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212A3F

Deuteranopia (green-blind)

#1A253E

Tritanopia (blue-blind)

#002F31

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #0a2a3e;
/* rgb */ color: rgb(10, 42, 62);
/* oklch */ color: oklch(27.3% 0.052 240.3);

Tailwind

colors: {
  custom: {
    50: '#526373',
    500: '#0a2a3e',
    950: '#000000',
  },
}

SCSS

$custom: #0a2a3e;
$custom-light: #526373;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2a3e",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 62
  },
  "hsl": {
    "h": 203.077,
    "s": 72.222,
    "l": 14.118
  },
  "oklch": {
    "l": 0.27278,
    "c": 0.05217,
    "h": 240.3
  },
  "luminance": 0.02068
}

Semantic roles & 50–950 ramp

primary

#0A2A3E

secondary

#7B4828

accent

#7F39EF

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#020508

muted

#78797B

Preview Lab

Preview with #0A2A3E

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

Preview Lab → · Contrast checker → · Palette generator →