#0A282F#0A282F

#0A282F is a dark, muted cyan. Relative luminance 0.018; OKLCH L 25.8% C 0.037 H 216.0°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX	#0A282F
RGB	rgb(10, 40, 47)
HSL	hsl(191, 65%, 11%)
HSV	hsv(191, 79%, 18%)
CMYK	cmyk(78.7%, 14.9%, 0%, 81.6%)
CIE-LAB	lab(14.33, -8.25, -7.85)
CIE-LCH	lch(14.33, 11.39, 223.55°)
OKLab	oklab(25.82% -0.0301 -0.0218)
OKLCH	oklch(25.82% 0.037 216)
XYZ	xyz(1.3968, 1.7872, 2.9601)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A282F #2F110A

analogous

#0A2F23 #0A282F #0A152F

triadic

#0A282F #2F0A28 #282F0A

tetradic

#0A282F #230A2F #2F110A #152F0A

square

#0A282F #230A2F #2F110A #152F0A

split-complementary

#0A282F #2F0A15 #2F230A

monochromatic

#051519 #051519 #0A282F #155361 #1F7E94

Accessibility & contrast

On white

15.47

#0A282F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#0A282F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A282F

15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A282F	#FFFFFF	#000000	##FFFFFF
##0A282F	1.00	15.47	1.36	15.47
#FFFFFF	15.47	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23272F

Deuteranopia (green-blind)

#1E232F

Tritanopia (blue-blind)

#002B2A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #0a282f;
/* rgb */ color: rgb(10, 40, 47);
/* oklch */ color: oklch(25.8% 0.037 216.0);

Tailwind

colors: {
  custom: {
    50: '#4f6267',
    500: '#0a282f',
    950: '#000000',
  },
}

SCSS

$custom: #0a282f;
$custom-light: #4f6267;
$custom-dark: #000000;

JSON

{
  "hex": "#0a282f",
  "rgb": {
    "r": 10,
    "g": 40,
    "b": 47
  },
  "hsl": {
    "h": 191.351,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.25818,
    "c": 0.03716,
    "h": 216
  },
  "luminance": 0.01787
}

Semantic roles & 50–950 ramp

primary

#0A282F

secondary

#6C3529

accent

#6040E8

background

#F4F5F6

surface

#E7EAEB

border

#C3C6C6

text

#020506

muted

#78797A

Preview Lab

Preview with #0A282F

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

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