#0B313D#0B313D

#0B313D is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.3% C 0.047 H 223.1°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#0B313D
RGB	rgb(11, 49, 61)
HSL	hsl(194, 69%, 14%)
HSV	hsv(194, 82%, 24%)
CMYK	cmyk(82%, 19.7%, 0%, 76.1%)
CIE-LAB	lab(18.38, -8.39, -11.40)
CIE-LCH	lch(18.38, 14.16, 233.65°)
OKLab	oklab(29.3% -0.0341 -0.0319)
OKLCH	oklch(29.3% 0.047 223.1)
XYZ	xyz(2.0783, 2.6045, 4.8072)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B313D #3D170B

analogous

#0B3D30 #0B313D #0B183D

triadic

#0B313D #3D0B31 #313D0B

tetradic

#0B313D #300B3D #3D170B #183D0B

square

#0B313D #300B3D #3D170B #183D0B

split-complementary

#0B313D #3D0B18 #3D300B

monochromatic

#05151A #05151A #0B313D #145B71 #1E84A5

Accessibility & contrast

On white

13.81

#0B313D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#0B313D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B313D

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B313D	#FFFFFF	#000000	##FFFFFF
##0B313D	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A303E

Deuteranopia (green-blind)

#232B3D

Tritanopia (blue-blind)

#003535

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0b313d;
/* rgb */ color: rgb(11, 49, 61);
/* oklch */ color: oklch(29.3% 0.047 223.1);

Tailwind

colors: {
  custom: {
    50: '#526972',
    500: '#0b313d',
    950: '#000000',
  },
}

SCSS

$custom: #0b313d;
$custom-light: #526972;
$custom-dark: #000000;

JSON

{
  "hex": "#0b313d",
  "rgb": {
    "r": 11,
    "g": 49,
    "b": 61
  },
  "hsl": {
    "h": 194.4,
    "s": 69.444,
    "l": 14.118
  },
  "oklch": {
    "l": 0.29298,
    "c": 0.04669,
    "h": 223.1
  },
  "luminance": 0.02605
}

Semantic roles & 50–950 ramp

primary

#0B313D

secondary

#7A3D2A

accent

#663CEC

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #0B313D

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

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