#0C284B#0C284B

#0C284B is a dark, moderate cyan. Relative luminance 0.021; OKLCH L 27.7% C 0.073 H 255.7°. Best body text is #FFFFFF at 14.78:1 contrast (WCAG AA passes).

Color values

HEX	#0C284B
RGB	rgb(12, 40, 75)
HSL	hsl(213, 72%, 17%)
HSV	hsv(213, 84%, 29%)
CMYK	cmyk(84%, 46.7%, 0%, 70.6%)
CIE-LAB	lab(16.02, 4.04, -24.71)
CIE-LCH	lch(16.02, 25.03, 279.28°)
OKLab	oklab(27.71% -0.018 -0.0707)
OKLCH	oklch(27.71% 0.073 255.7)
XYZ	xyz(2.1799, 2.1035, 6.9464)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C284B #4B2F0C

analogous

#0C484B #0C284B #0F0C4B

triadic

#0C284B #4B0C28 #284B0C

tetradic

#0C284B #4B0C48 #4B2F0C #0C4B0F

square

#0C284B #4B0C48 #4B2F0C #0C4B0F

split-complementary

#0C284B #4B0F0C #484B0C

monochromatic

#040E1A #040E1A #0C284B #144480 #1D60B5

Accessibility & contrast

On white

14.78

#0C284B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0C284B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C284B

14.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C284B	#FFFFFF	#000000	##FFFFFF
##0C284B	1.00	14.78	1.42	14.78
#FFFFFF	14.78	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4C

Deuteranopia (green-blind)

#0C254A

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0c284b;
/* rgb */ color: rgb(12, 40, 75);
/* oklch */ color: oklch(27.7% 0.073 255.7);

Tailwind

colors: {
  custom: {
    50: '#56617d',
    500: '#0c284b',
    950: '#000000',
  },
}

SCSS

$custom: #0c284b;
$custom-light: #56617d;
$custom-dark: #000000;

JSON

{
  "hex": "#0c284b",
  "rgb": {
    "r": 12,
    "g": 40,
    "b": 75
  },
  "hsl": {
    "h": 213.333,
    "s": 72.414,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27706,
    "c": 0.07293,
    "h": 255.7
  },
  "luminance": 0.02104
}

Semantic roles & 50–950 ramp

primary

#0C284B

secondary

#875E2C

accent

#9E39EF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03050A

muted

#78797C

Preview Lab

Preview with #0C284B

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

Preview Lab → · Contrast checker → · Palette generator →