#0A1A2F#0A1A2F

#0A1A2F is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.6% C 0.047 H 256.0°. Best body text is #FFFFFF at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#0A1A2F
RGB	rgb(10, 26, 47)
HSL	hsl(214, 65%, 11%)
HSV	hsv(214, 79%, 18%)
CMYK	cmyk(78.7%, 44.7%, 0%, 81.6%)
CIE-LAB	lab(9.06, 1.81, -16.03)
CIE-LCH	lch(9.06, 16.14, 276.43°)
OKLab	oklab(21.64% -0.0114 -0.0455)
OKLCH	oklch(21.64% 0.047 256)
XYZ	xyz(1.0075, 1.0085, 2.8303)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1A2F #2F1F0A

analogous

#0A2C2F #0A1A2F #0C0A2F

triadic

#0A1A2F #2F0A1A #1A2F0A

tetradic

#0A1A2F #2F0A2C #2F1F0A #0A2F0C

square

#0A1A2F #2F0A2C #2F1F0A #0A2F0C

split-complementary

#0A1A2F #2F0C0A #2C2F0A

monochromatic

#050E19 #050E19 #0A1A2F #153661 #1F5294

Accessibility & contrast

On white

17.47

#0A1A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0A1A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1A2F

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1A2F	#FFFFFF	#000000	##FFFFFF
##0A1A2F	1.00	17.47	1.20	17.47
#FFFFFF	17.47	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111C30

Deuteranopia (green-blind)

#0C182F

Tritanopia (blue-blind)

#001F22

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1a2f;
/* rgb */ color: rgb(10, 26, 47);
/* oklch */ color: oklch(21.6% 0.047 256.0);

Tailwind

colors: {
  custom: {
    50: '#4e5667',
    500: '#0a1a2f',
    950: '#000000',
  },
}

SCSS

$custom: #0a1a2f;
$custom-light: #4e5667;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1a2f",
  "rgb": {
    "r": 10,
    "g": 26,
    "b": 47
  },
  "hsl": {
    "h": 214.054,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.21644,
    "c": 0.04694,
    "h": 256
  },
  "luminance": 0.01009
}

Semantic roles & 50–950 ramp

primary

#0A1A2F

secondary

#6C4F29

accent

#9F40E8

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020306

muted

#78787A

Preview Lab

Preview with #0A1A2F

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

Preview Lab → · Contrast checker → · Palette generator →