#0B3E4B#0B3E4B

#0B3E4B is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.056 H 219.4°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#0B3E4B
RGB	rgb(11, 62, 75)
HSL	hsl(192, 74%, 17%)
HSV	hsv(192, 85%, 29%)
CMYK	cmyk(85.3%, 17.3%, 0%, 70.6%)
CIE-LAB	lab(23.75, -11.07, -12.59)
CIE-LCH	lch(23.75, 16.77, 228.67°)
OKLab	oklab(33.82% -0.0429 -0.0352)
OKLCH	oklch(33.82% 0.056 219.4)
XYZ	xyz(3.1301, 4.0240, 7.2670)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3E4B #4B180B

analogous

#0B4B38 #0B3E4B #0B1E4B

triadic

#0B3E4B #4B0B3E #3E4B0B

tetradic

#0B3E4B #380B4B #4B180B #1E4B0B

square

#0B3E4B #380B4B #4B180B #1E4B0B

split-complementary

#0B3E4B #4B0B1E #4B380B

monochromatic

#04161B #04161B #0B3E4B #136A80 #1B96B6

Accessibility & contrast

On white

11.64

#0B3E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#0B3E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3E4B

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3E4B	#FFFFFF	#000000	##FFFFFF
##0B3E4B	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363C4C

Deuteranopia (green-blind)

#2D364B

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0b3e4b;
/* rgb */ color: rgb(11, 62, 75);
/* oklch */ color: oklch(33.8% 0.056 219.4);

Tailwind

colors: {
  custom: {
    50: '#56737d',
    500: '#0b3e4b',
    950: '#000000',
  },
}

SCSS

$custom: #0b3e4b;
$custom-light: #56737d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3e4b",
  "rgb": {
    "r": 11,
    "g": 62,
    "b": 75
  },
  "hsl": {
    "h": 192.188,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.3382,
    "c": 0.05553,
    "h": 219.4
  },
  "luminance": 0.04024
}

Semantic roles & 50–950 ramp

primary

#0B3E4B

secondary

#873D2B

accent

#5D37F1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#030809

muted

#787B7B

Preview Lab

Preview with #0B3E4B

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

Preview Lab → · Contrast checker → · Palette generator →