#0B3D4B#0B3D4B

#0B3D4B is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.056 H 221.4°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#0B3D4B
RGB	rgb(11, 61, 75)
HSL	hsl(193, 74%, 17%)
HSV	hsv(193, 85%, 29%)
CMYK	cmyk(85.3%, 18.7%, 0%, 70.6%)
CIE-LAB	lab(23.39, -10.46, -13.14)
CIE-LCH	lch(23.39, 16.79, 231.49°)
OKLab	oklab(33.53% -0.0418 -0.0368)
OKLCH	oklch(33.53% 0.056 221.4)
XYZ	xyz(3.0762, 3.9163, 7.2490)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3D4B #4B190B

analogous

#0B4B39 #0B3D4B #0B1D4B

triadic

#0B3D4B #4B0B3D #3D4B0B

tetradic

#0B3D4B #390B4B #4B190B #1D4B0B

square

#0B3D4B #390B4B #4B190B #1D4B0B

split-complementary

#0B3D4B #4B0B1D #4B390B

monochromatic

#04161B #04161B #0B3D4B #136880 #1B94B6

Accessibility & contrast

On white

11.78

#0B3D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#0B3D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3D4B

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3D4B	#FFFFFF	#000000	##FFFFFF
##0B3D4B	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353B4C

Deuteranopia (green-blind)

#2C354B

Tritanopia (blue-blind)

#004141

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #0b3d4b;
/* rgb */ color: rgb(11, 61, 75);
/* oklch */ color: oklch(33.5% 0.056 221.4);

Tailwind

colors: {
  custom: {
    50: '#56727d',
    500: '#0b3d4b',
    950: '#000000',
  },
}

SCSS

$custom: #0b3d4b;
$custom-light: #56727d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3d4b",
  "rgb": {
    "r": 11,
    "g": 61,
    "b": 75
  },
  "hsl": {
    "h": 193.125,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33532,
    "c": 0.05568,
    "h": 221.4
  },
  "luminance": 0.03917
}

Semantic roles & 50–950 ramp

primary

#0B3D4B

secondary

#873F2B

accent

#6037F1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#030809

muted

#787B7B

Preview Lab

Preview with #0B3D4B

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

Preview Lab → · Contrast checker → · Palette generator →