#0B374B#0B374B

#0B374B is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.8% C 0.058 H 233.0°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#0B374B
RGB	rgb(11, 55, 75)
HSL	hsl(199, 74%, 17%)
HSV	hsv(199, 85%, 29%)
CMYK	cmyk(85.3%, 26.7%, 0%, 70.6%)
CIE-LAB	lab(21.25, -6.62, -16.46)
CIE-LCH	lch(21.25, 17.74, 248.09°)
OKLab	oklab(31.82% -0.035 -0.0464)
OKLCH	oklch(31.82% 0.058 233)
XYZ	xyz(2.7737, 3.3112, 7.1482)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B374B #4B1F0B

analogous

#0B4B3F #0B374B #0B174B

triadic

#0B374B #4B0B37 #374B0B

tetradic

#0B374B #3F0B4B #4B1F0B #174B0B

square

#0B374B #3F0B4B #4B1F0B #174B0B

split-complementary

#0B374B #4B0B17 #4B3F0B

monochromatic

#04141B #04141B #0B374B #135E80 #1B85B6

Accessibility & contrast

On white

12.63

#0B374B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#0B374B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B374B

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B374B	#FFFFFF	#000000	##FFFFFF
##0B374B	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D364C

Deuteranopia (green-blind)

#25304B

Tritanopia (blue-blind)

#003C3E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0b374b;
/* rgb */ color: rgb(11, 55, 75);
/* oklch */ color: oklch(31.8% 0.058 233.0);

Tailwind

colors: {
  custom: {
    50: '#566d7d',
    500: '#0b374b',
    950: '#000000',
  },
}

SCSS

$custom: #0b374b;
$custom-light: #566d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b374b",
  "rgb": {
    "r": 11,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 198.75,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.31817,
    "c": 0.05808,
    "h": 233
  },
  "luminance": 0.03312
}

Semantic roles & 50–950 ramp

primary

#0B374B

secondary

#87482B

accent

#7137F1

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0B374B

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

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