#0B284A#0B284A

#0B284A is a dark, moderate cyan. Relative luminance 0.021; OKLCH L 27.6% C 0.072 H 254.6°. Best body text is #FFFFFF at 14.82:1 contrast (WCAG AA passes).

Color values

HEX	#0B284A
RGB	rgb(11, 40, 74)
HSL	hsl(212, 74%, 17%)
HSV	hsv(212, 85%, 29%)
CMYK	cmyk(85.1%, 45.9%, 0%, 71%)
CIE-LAB	lab(15.92, 3.45, -24.19)
CIE-LCH	lch(15.92, 24.44, 278.11°)
OKLab	oklab(27.59% -0.019 -0.0692)
OKLCH	oklch(27.59% 0.072 254.6)
XYZ	xyz(2.1324, 2.0829, 6.7669)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B284A #4A2D0B

analogous

#0B484A #0B284A #0E0B4A

triadic

#0B284A #4A0B28 #284A0B

tetradic

#0B284A #4A0B48 #4A2D0B #0B4A0E

square

#0B284A #4A0B48 #4A2D0B #0B4A0E

split-complementary

#0B284A #4A0E0B #484A0B

monochromatic

#040E1B #040E1B #0B284A #13457F #1B62B5

Accessibility & contrast

On white

14.82

#0B284A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0B284A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B284A

14.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B284A	#FFFFFF	#000000	##FFFFFF
##0B284A	1.00	14.82	1.42	14.82
#FFFFFF	14.82	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4B

Deuteranopia (green-blind)

#0D2549

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0b284a;
/* rgb */ color: rgb(11, 40, 74);
/* oklch */ color: oklch(27.6% 0.072 254.6);

Tailwind

colors: {
  custom: {
    50: '#55617d',
    500: '#0b284a',
    950: '#000000',
  },
}

SCSS

$custom: #0b284a;
$custom-light: #55617d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b284a",
  "rgb": {
    "r": 11,
    "g": 40,
    "b": 74
  },
  "hsl": {
    "h": 212.381,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.27592,
    "c": 0.07173,
    "h": 254.6
  },
  "luminance": 0.02083
}

Semantic roles & 50–950 ramp

primary

#0B284A

secondary

#865C2B

accent

#9B37F1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030509

muted

#78797B

Preview Lab

Preview with #0B284A

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

Preview Lab → · Contrast checker → · Palette generator →