#0B3E4A#0B3E4A

#0B3E4A is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.055 H 217.7°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#0B3E4A
RGB	rgb(11, 62, 74)
HSL	hsl(191, 74%, 17%)
HSV	hsv(191, 85%, 29%)
CMYK	cmyk(85.1%, 16.2%, 0%, 71%)
CIE-LAB	lab(23.71, -11.46, -12.00)
CIE-LCH	lch(23.71, 16.59, 226.31°)
OKLab	oklab(33.77% -0.0434 -0.0335)
OKLCH	oklch(33.77% 0.055 217.7)
XYZ	xyz(3.0961, 4.0104, 7.0881)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3E4A #4A170B

analogous

#0B4A37 #0B3E4A #0B1F4A

triadic

#0B3E4A #4A0B3E #3E4A0B

tetradic

#0B3E4A #370B4A #4A170B #1F4A0B

square

#0B3E4A #370B4A #4A170B #1F4A0B

split-complementary

#0B3E4A #4A0B1F #4A370B

monochromatic

#04161B #04161B #0B3E4A #136B7F #1B97B5

Accessibility & contrast

On white

11.65

#0B3E4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#0B3E4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3E4A

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3E4A	#FFFFFF	#000000	##FFFFFF
##0B3E4A	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363C4B

Deuteranopia (green-blind)

#2E364A

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #0b3e4a;
/* rgb */ color: rgb(11, 62, 74);
/* oklch */ color: oklch(33.8% 0.055 217.7);

Tailwind

colors: {
  custom: {
    50: '#56737c',
    500: '#0b3e4a',
    950: '#000000',
  },
}

SCSS

$custom: #0b3e4a;
$custom-light: #56737c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3e4a",
  "rgb": {
    "r": 11,
    "g": 62,
    "b": 74
  },
  "hsl": {
    "h": 191.429,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.33769,
    "c": 0.05485,
    "h": 217.7
  },
  "luminance": 0.04011
}

Semantic roles & 50–950 ramp

primary

#0B3E4A

secondary

#863C2B

accent

#5A37F1

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#030809

muted

#787B7B

Preview Lab

Preview with #0B3E4A

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

Preview Lab → · Contrast checker → · Palette generator →