#0B3F56#0B3F56

#0B3F56 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.065 H 233.0°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#0B3F56
RGB	rgb(11, 63, 86)
HSL	hsl(198, 77%, 19%)
HSV	hsv(198, 87%, 34%)
CMYK	cmyk(87.2%, 26.7%, 0%, 66.3%)
CIE-LAB	lab(24.63, -7.31, -18.47)
CIE-LCH	lch(24.63, 19.86, 248.42°)
OKLab	oklab(34.7% -0.0393 -0.0521)
OKLCH	oklch(34.7% 0.065 233)
XYZ	xyz(3.5946, 4.2976, 9.4424)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3F56 #56220B

analogous

#0B5648 #0B3F56 #0B1A56

triadic

#0B3F56 #560B3F #3F560B

tetradic

#0B3F56 #480B56 #56220B #1A560B

square

#0B3F56 #480B56 #56220B #1A560B

split-complementary

#0B3F56 #560B1A #56480B

monochromatic

#03141B #041720 #0B3F56 #12678C #198EC3

Accessibility & contrast

On white

11.29

#0B3F56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#0B3F56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3F56

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3F56	#FFFFFF	#000000	##FFFFFF
##0B3F56	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343E57

Deuteranopia (green-blind)

#2A3756

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #0b3f56;
/* rgb */ color: rgb(11, 63, 86);
/* oklch */ color: oklch(34.7% 0.065 233.0);

Tailwind

colors: {
  custom: {
    50: '#597485',
    500: '#0b3f56',
    950: '#000000',
  },
}

SCSS

$custom: #0b3f56;
$custom-light: #597485;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3f56",
  "rgb": {
    "r": 11,
    "g": 63,
    "b": 86
  },
  "hsl": {
    "h": 198.4,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.347,
    "c": 0.06523,
    "h": 233
  },
  "luminance": 0.04298
}

Semantic roles & 50–950 ramp

primary

#0B3F56

secondary

#914B2B

accent

#6F34F4

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #0B3F56

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

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