#0B3540#0B3540

#0B3540 is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.6% C 0.048 H 219.2°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#0B3540
RGB	rgb(11, 53, 64)
HSL	hsl(192, 71%, 15%)
HSV	hsv(192, 83%, 25%)
CMYK	cmyk(82.8%, 17.2%, 0%, 74.9%)
CIE-LAB	lab(19.99, -9.77, -10.98)
CIE-LCH	lch(19.99, 14.70, 228.35°)
OKLab	oklab(30.63% -0.0375 -0.0307)
OKLCH	oklch(30.63% 0.048 219.2)
XYZ	xyz(2.3361, 2.9872, 5.3030)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3540 #40160B

analogous

#0B4031 #0B3540 #0B1B40

triadic

#0B3540 #400B35 #35400B

tetradic

#0B3540 #310B40 #40160B #1B400B

square

#0B3540 #310B40 #40160B #1B400B

split-complementary

#0B3540 #400B1B #40310B

monochromatic

#04161A #04161A #0B3540 #146074 #1D8BA8

Accessibility & contrast

On white

13.14

#0B3540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#0B3540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3540

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3540	#FFFFFF	#000000	##FFFFFF
##0B3540	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3341

Deuteranopia (green-blind)

#272E40

Tritanopia (blue-blind)

#003938

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0b3540;
/* rgb */ color: rgb(11, 53, 64);
/* oklch */ color: oklch(30.6% 0.048 219.2);

Tailwind

colors: {
  custom: {
    50: '#536c74',
    500: '#0b3540',
    950: '#000000',
  },
}

SCSS

$custom: #0b3540;
$custom-light: #536c74;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3540",
  "rgb": {
    "r": 11,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 192.453,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.30634,
    "c": 0.04848,
    "h": 219.2
  },
  "luminance": 0.02988
}

Semantic roles & 50–950 ramp

primary

#0B3540

secondary

#7D3B2A

accent

#603AED

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0B3540

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

Preview Lab → · Contrast checker → · Palette generator →