#0B2B40#0B2B40

#0B2B40 is a dark, muted cyan. Relative luminance 0.022; OKLCH L 27.7% C 0.054 H 241.5°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#0B2B40
RGB	rgb(11, 43, 64)
HSL	hsl(204, 71%, 15%)
HSV	hsv(204, 83%, 25%)
CMYK	cmyk(82.8%, 32.8%, 0%, 74.9%)
CIE-LAB	lab(16.35, -3.10, -16.63)
CIE-LCH	lch(16.35, 16.92, 259.44°)
OKLab	oklab(27.73% -0.0256 -0.047)
OKLCH	oklch(27.73% 0.054 241.5)
XYZ	xyz(1.9269, 2.1688, 5.1666)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2B40 #40200B

analogous

#0B403B #0B2B40 #0B1040

triadic

#0B2B40 #400B2B #2B400B

tetradic

#0B2B40 #3B0B40 #40200B #10400B

square

#0B2B40 #3B0B40 #40200B #10400B

split-complementary

#0B2B40 #400B10 #403B0B

monochromatic

#04121A #04121A #0B2B40 #144E74 #1D71A8

Accessibility & contrast

On white

14.65

#0B2B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#0B2B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2B40

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2B40	#FFFFFF	#000000	##FFFFFF
##0B2B40	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212B41

Deuteranopia (green-blind)

#1A2640

Tritanopia (blue-blind)

#003032

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0b2b40;
/* rgb */ color: rgb(11, 43, 64);
/* oklch */ color: oklch(27.7% 0.054 241.5);

Tailwind

colors: {
  custom: {
    50: '#536475',
    500: '#0b2b40',
    950: '#000000',
  },
}

SCSS

$custom: #0b2b40;
$custom-light: #536475;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2b40",
  "rgb": {
    "r": 11,
    "g": 43,
    "b": 64
  },
  "hsl": {
    "h": 203.774,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.27727,
    "c": 0.05351,
    "h": 241.5
  },
  "luminance": 0.02169
}

Semantic roles & 50–950 ramp

primary

#0B2B40

secondary

#7D4B2A

accent

#813AED

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #0B2B40

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

Preview Lab → · Contrast checker → · Palette generator →