#0B313F#0B313F

#0B313F is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.4% C 0.049 H 226.8°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#0B313F
RGB	rgb(11, 49, 63)
HSL	hsl(196, 70%, 15%)
HSV	hsv(196, 83%, 25%)
CMYK	cmyk(82.5%, 22.2%, 0%, 75.3%)
CIE-LAB	lab(18.48, -7.59, -12.63)
CIE-LCH	lch(18.48, 14.73, 239.00°)
OKLab	oklab(29.41% -0.0332 -0.0354)
OKLCH	oklch(29.41% 0.049 226.8)
XYZ	xyz(2.1332, 2.6264, 5.0962)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B313F #3F190B

analogous

#0B3F33 #0B313F #0B173F

triadic

#0B313F #3F0B31 #313F0B

tetradic

#0B313F #330B3F #3F190B #173F0B

square

#0B313F #330B3F #3F190B #173F0B

split-complementary

#0B313F #3F0B17 #3F330B

monochromatic

#05141A #05141A #0B313F #145A73 #1D82A7

Accessibility & contrast

On white

13.77

#0B313F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#0B313F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B313F

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B313F	#FFFFFF	#000000	##FFFFFF
##0B313F	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293040

Deuteranopia (green-blind)

#222B3F

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0b313f;
/* rgb */ color: rgb(11, 49, 63);
/* oklch */ color: oklch(29.4% 0.049 226.8);

Tailwind

colors: {
  custom: {
    50: '#536974',
    500: '#0b313f',
    950: '#000000',
  },
}

SCSS

$custom: #0b313f;
$custom-light: #536974;
$custom-dark: #000000;

JSON

{
  "hex": "#0b313f",
  "rgb": {
    "r": 11,
    "g": 49,
    "b": 63
  },
  "hsl": {
    "h": 196.154,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29407,
    "c": 0.04851,
    "h": 226.8
  },
  "luminance": 0.02627
}

Semantic roles & 50–950 ramp

primary

#0B313F

secondary

#7C402A

accent

#6B3BED

background

#F4F6F7

surface

#E8EBED

border

#C4C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0B313F

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

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