#0B374A#0B374A

#0B374A is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.8% C 0.057 H 231.6°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#0B374A
RGB	rgb(11, 55, 74)
HSL	hsl(198, 74%, 17%)
HSV	hsv(198, 85%, 29%)
CMYK	cmyk(85.1%, 25.7%, 0%, 71%)
CIE-LAB	lab(21.20, -7.03, -15.87)
CIE-LCH	lch(21.20, 17.36, 246.10°)
OKLab	oklab(31.76% -0.0354 -0.0447)
OKLCH	oklch(31.76% 0.057 231.6)
XYZ	xyz(2.7397, 3.2976, 6.9693)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B374A #4A1E0B

analogous

#0B4A3E #0B374A #0B184A

triadic

#0B374A #4A0B37 #374A0B

tetradic

#0B374A #3E0B4A #4A1E0B #184A0B

square

#0B374A #3E0B4A #4A1E0B #184A0B

split-complementary

#0B374A #4A0B18 #4A3E0B

monochromatic

#04141B #04141B #0B374A #135F7F #1B86B5

Accessibility & contrast

On white

12.65

#0B374A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#0B374A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B374A

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B374A	#FFFFFF	#000000	##FFFFFF
##0B374A	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D364B

Deuteranopia (green-blind)

#25304A

Tritanopia (blue-blind)

#003C3D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0b374a;
/* rgb */ color: rgb(11, 55, 74);
/* oklch */ color: oklch(31.8% 0.057 231.6);

Tailwind

colors: {
  custom: {
    50: '#566d7c',
    500: '#0b374a',
    950: '#000000',
  },
}

SCSS

$custom: #0b374a;
$custom-light: #566d7c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b374a",
  "rgb": {
    "r": 11,
    "g": 55,
    "b": 74
  },
  "hsl": {
    "h": 198.095,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.31759,
    "c": 0.05699,
    "h": 231.6
  },
  "luminance": 0.03298
}

Semantic roles & 50–950 ramp

primary

#0B374A

secondary

#86462B

accent

#6F37F1

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0B374A

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

Preview Lab → · Contrast checker → · Palette generator →