#0B284C#0B284C

#0B284C is a dark, moderate cyan. Relative luminance 0.021; OKLCH L 27.7% C 0.075 H 255.7°. Best body text is #FFFFFF at 14.77:1 contrast (WCAG AA passes).

Color values

HEX	#0B284C
RGB	rgb(11, 40, 76)
HSL	hsl(213, 75%, 17%)
HSV	hsv(213, 86%, 30%)
CMYK	cmyk(85.5%, 47.4%, 0%, 70.2%)
CIE-LAB	lab(16.06, 4.34, -25.33)
CIE-LCH	lch(16.06, 25.70, 279.72°)
OKLab	oklab(27.74% -0.0185 -0.0725)
OKLCH	oklch(27.74% 0.075 255.7)
XYZ	xyz(2.2008, 2.1103, 7.1274)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B284C #4C2F0B

analogous

#0B494C #0B284C #0F0B4C

triadic

#0B284C #4C0B28 #284C0B

tetradic

#0B284C #4C0B49 #4C2F0B #0B4C0F

square

#0B284C #4C0B49 #4C2F0B #0B4C0F

split-complementary

#0B284C #4C0F0B #494C0B

monochromatic

#040E1B #040E1B #0B284C #134481 #1A60B7

Accessibility & contrast

On white

14.77

#0B284C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0B284C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B284C

14.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B284C	#FFFFFF	#000000	##FFFFFF
##0B284C	1.00	14.77	1.42	14.77
#FFFFFF	14.77	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#162B4D

Deuteranopia (green-blind)

#0A254B

Tritanopia (blue-blind)

#003136

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0b284c;
/* rgb */ color: rgb(11, 40, 76);
/* oklch */ color: oklch(27.7% 0.075 255.7);

Tailwind

colors: {
  custom: {
    50: '#56617e',
    500: '#0b284c',
    950: '#000000',
  },
}

SCSS

$custom: #0b284c;
$custom-light: #56617e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b284c",
  "rgb": {
    "r": 11,
    "g": 40,
    "b": 76
  },
  "hsl": {
    "h": 213.231,
    "s": 74.713,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27745,
    "c": 0.07485,
    "h": 255.7
  },
  "luminance": 0.02111
}

Semantic roles & 50–950 ramp

primary

#0B284C

secondary

#885E2B

accent

#9E36F1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03050A

muted

#78797C

Preview Lab

Preview with #0B284C

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

Preview Lab → · Contrast checker → · Palette generator →