#0B303C#0B303C

#0B303C is a dark, muted cyan. Relative luminance 0.025; OKLCH L 28.9% C 0.046 H 223.6°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#0B303C
RGB	rgb(11, 48, 60)
HSL	hsl(195, 69%, 14%)
HSV	hsv(195, 82%, 24%)
CMYK	cmyk(81.7%, 20%, 0%, 76.5%)
CIE-LAB	lab(17.97, -8.14, -11.36)
CIE-LCH	lch(17.97, 13.97, 234.35°)
OKLab	oklab(28.95% -0.0333 -0.0318)
OKLCH	oklch(28.95% 0.046 223.6)
XYZ	xyz(2.0102, 2.5111, 4.6528)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B303C #3C170B

analogous

#0B3C30 #0B303C #0B183C

triadic

#0B303C #3C0B30 #303C0B

tetradic

#0B303C #300B3C #3C170B #183C0B

square

#0B303C #300B3C #3C170B #183C0B

split-complementary

#0B303C #3C0B18 #3C300B

monochromatic

#05151A #05151A #0B303C #145970 #1E83A3

Accessibility & contrast

On white

13.98

#0B303C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#0B303C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B303C

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B303C	#FFFFFF	#000000	##FFFFFF
##0B303C	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292F3D

Deuteranopia (green-blind)

#222A3C

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0b303c;
/* rgb */ color: rgb(11, 48, 60);
/* oklch */ color: oklch(28.9% 0.046 223.6);

Tailwind

colors: {
  custom: {
    50: '#526871',
    500: '#0b303c',
    950: '#000000',
  },
}

SCSS

$custom: #0b303c;
$custom-light: #526871;
$custom-dark: #000000;

JSON

{
  "hex": "#0b303c",
  "rgb": {
    "r": 11,
    "g": 48,
    "b": 60
  },
  "hsl": {
    "h": 194.694,
    "s": 69.014,
    "l": 13.922
  },
  "oklch": {
    "l": 0.28949,
    "c": 0.04605,
    "h": 223.6
  },
  "luminance": 0.02511
}

Semantic roles & 50–950 ramp

primary

#0B303C

secondary

#793D2A

accent

#673CEC

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #0B303C

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

Preview Lab → · Contrast checker → · Palette generator →