#0B313A#0B313A

#0B313A is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.1% C 0.044 H 216.8°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#0B313A
RGB	rgb(11, 49, 58)
HSL	hsl(191, 68%, 14%)
HSV	hsv(191, 81%, 23%)
CMYK	cmyk(81%, 15.5%, 0%, 77.3%)
CIE-LAB	lab(18.25, -9.58, -9.55)
CIE-LCH	lch(18.25, 13.53, 224.93°)
OKLab	oklab(29.14% -0.0355 -0.0266)
OKLCH	oklch(29.14% 0.044 216.8)
XYZ	xyz(1.9997, 2.5730, 4.3934)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B313A #3A140B

analogous

#0B3A2B #0B313A #0B193A

triadic

#0B313A #3A0B31 #313A0B

tetradic

#0B313A #2B0B3A #3A140B #193A0B

square

#0B313A #2B0B3A #3A140B #193A0B

split-complementary

#0B313A #3A0B19 #3A2B0B

monochromatic

#05161A #05161A #0B313A #155C6D #1F88A1

Accessibility & contrast

On white

13.87

#0B313A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0B313A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B313A

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B313A	#FFFFFF	#000000	##FFFFFF
##0B313A	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2F3B

Deuteranopia (green-blind)

#242A3A

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0b313a;
/* rgb */ color: rgb(11, 49, 58);
/* oklch */ color: oklch(29.1% 0.044 216.8);

Tailwind

colors: {
  custom: {
    50: '#526970',
    500: '#0b313a',
    950: '#000000',
  },
}

SCSS

$custom: #0b313a;
$custom-light: #526970;
$custom-dark: #000000;

JSON

{
  "hex": "#0b313a",
  "rgb": {
    "r": 11,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 191.489,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.2914,
    "c": 0.04441,
    "h": 216.8
  },
  "luminance": 0.02573
}

Semantic roles & 50–950 ramp

primary

#0B313A

secondary

#77392A

accent

#5E3DEB

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #0B313A

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

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