#0B303D#0B303D

#0B303D is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.0% C 0.047 H 225.6°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#0B303D
RGB	rgb(11, 48, 61)
HSL	hsl(196, 69%, 14%)
HSV	hsv(196, 82%, 24%)
CMYK	cmyk(82%, 21.3%, 0%, 76.1%)
CIE-LAB	lab(18.02, -7.74, -11.97)
CIE-LCH	lch(18.02, 14.25, 237.11°)
OKLab	oklab(29% -0.0329 -0.0335)
OKLCH	oklch(29% 0.047 225.6)
XYZ	xyz(2.0369, 2.5217, 4.7934)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B303D #3D180B

analogous

#0B3D31 #0B303D #0B173D

triadic

#0B303D #3D0B30 #303D0B

tetradic

#0B303D #310B3D #3D180B #173D0B

square

#0B303D #310B3D #3D180B #173D0B

split-complementary

#0B303D #3D0B17 #3D310B

monochromatic

#05141A #05141A #0B303D #145971 #1E82A5

Accessibility & contrast

On white

13.96

#0B303D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#0B303D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B303D

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B303D	#FFFFFF	#000000	##FFFFFF
##0B303D	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292F3E

Deuteranopia (green-blind)

#222A3D

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0b303d;
/* rgb */ color: rgb(11, 48, 61);
/* oklch */ color: oklch(29.0% 0.047 225.6);

Tailwind

colors: {
  custom: {
    50: '#526872',
    500: '#0b303d',
    950: '#000000',
  },
}

SCSS

$custom: #0b303d;
$custom-light: #526872;
$custom-dark: #000000;

JSON

{
  "hex": "#0b303d",
  "rgb": {
    "r": 11,
    "g": 48,
    "b": 61
  },
  "hsl": {
    "h": 195.6,
    "s": 69.444,
    "l": 14.118
  },
  "oklch": {
    "l": 0.29003,
    "c": 0.04695,
    "h": 225.6
  },
  "luminance": 0.02522
}

Semantic roles & 50–950 ramp

primary

#0B303D

secondary

#7A3F2A

accent

#693CEC

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #0B303D

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

Preview Lab → · Contrast checker → · Palette generator →