#0B2B4A#0B2B4A

#0B2B4A is a dark, moderate cyan. Relative luminance 0.023; OKLCH L 28.4% C 0.068 H 251.0°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#0B2B4A
RGB	rgb(11, 43, 74)
HSL	hsl(210, 74%, 17%)
HSV	hsv(210, 85%, 29%)
CMYK	cmyk(85.1%, 41.9%, 0%, 71%)
CIE-LAB	lab(16.96, 1.25, -22.54)
CIE-LCH	lch(16.96, 22.57, 273.17°)
OKLab	oklab(28.4% -0.0221 -0.0642)
OKLCH	oklch(28.4% 0.068 251)
XYZ	xyz(2.2375, 2.2931, 6.8019)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2B4A #4A2A0B

analogous

#0B4A4A #0B2B4A #0B0B4A

triadic

#0B2B4A #4A0B2B #2B4A0B

tetradic

#0B2B4A #4A0B4A #4A2A0B #0B4A0B

square

#0B2B4A #4A0B4A #4A2A0B #0B4A0B

split-complementary

#0B2B4A #4A0B0B #4A4A0B

monochromatic

#040F1B #040F1B #0B2B4A #134A7F #1B69B5

Accessibility & contrast

On white

14.40

#0B2B4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#0B2B4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2B4A

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2B4A	#FFFFFF	#000000	##FFFFFF
##0B2B4A	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C2D4B

Deuteranopia (green-blind)

#132749

Tritanopia (blue-blind)

#003236

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #0b2b4a;
/* rgb */ color: rgb(11, 43, 74);
/* oklch */ color: oklch(28.4% 0.068 251.0);

Tailwind

colors: {
  custom: {
    50: '#55637c',
    500: '#0b2b4a',
    950: '#000000',
  },
}

SCSS

$custom: #0b2b4a;
$custom-light: #55637c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2b4a",
  "rgb": {
    "r": 11,
    "g": 43,
    "b": 74
  },
  "hsl": {
    "h": 209.524,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.28403,
    "c": 0.06796,
    "h": 251
  },
  "luminance": 0.02293
}

Semantic roles & 50–950 ramp

primary

#0B2B4A

secondary

#86582B

accent

#9237F1

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#030509

muted

#78797B

Preview Lab

Preview with #0B2B4A

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

Preview Lab → · Contrast checker → · Palette generator →