#0B3B4D#0B3B4D

#0B3B4D is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.1% C 0.058 H 228.3°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#0B3B4D
RGB	rgb(11, 59, 77)
HSL	hsl(196, 75%, 17%)
HSV	hsv(196, 86%, 30%)
CMYK	cmyk(85.7%, 23.4%, 0%, 69.8%)
CIE-LAB	lab(22.77, -8.40, -15.42)
CIE-LCH	lch(22.77, 17.56, 241.44°)
OKLab	oklab(33.07% -0.0386 -0.0433)
OKLCH	oklch(33.07% 0.058 228.3)
XYZ	xyz(3.0410, 3.7345, 7.5803)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3B4D #4D1D0B

analogous

#0B4D3E #0B3B4D #0B1A4D

triadic

#0B3B4D #4D0B3B #3B4D0B

tetradic

#0B3B4D #3E0B4D #4D1D0B #1A4D0B

square

#0B3B4D #3E0B4D #4D1D0B #1A4D0B

split-complementary

#0B3B4D #4D0B1A #4D3E0B

monochromatic

#04151B #04151B #0B3B4D #136483 #1A8DB8

Accessibility & contrast

On white

12.02

#0B3B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#0B3B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3B4D

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3B4D	#FFFFFF	#000000	##FFFFFF
##0B3B4D	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4E

Deuteranopia (green-blind)

#29344D

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #0b3b4d;
/* rgb */ color: rgb(11, 59, 77);
/* oklch */ color: oklch(33.1% 0.058 228.3);

Tailwind

colors: {
  custom: {
    50: '#57717f',
    500: '#0b3b4d',
    950: '#000000',
  },
}

SCSS

$custom: #0b3b4d;
$custom-light: #57717f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3b4d",
  "rgb": {
    "r": 11,
    "g": 59,
    "b": 77
  },
  "hsl": {
    "h": 196.364,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.33067,
    "c": 0.05807,
    "h": 228.3
  },
  "luminance": 0.03735
}

Semantic roles & 50–950 ramp

primary

#0B3B4D

secondary

#89442B

accent

#6936F2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#03070A

muted

#787A7C

Preview Lab

Preview with #0B3B4D

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

Preview Lab → · Contrast checker → · Palette generator →