#0B2837#0B2837

#0B2837 is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.3% C 0.044 H 234.7°. Best body text is #FFFFFF at 15.29:1 contrast (WCAG AA passes).

Color values

HEX	#0B2837
RGB	rgb(11, 40, 55)
HSL	hsl(200, 67%, 13%)
HSV	hsv(200, 80%, 22%)
CMYK	cmyk(80%, 27.3%, 0%, 78.4%)
CIE-LAB	lab(14.76, -4.81, -12.84)
CIE-LCH	lch(14.76, 13.71, 249.46°)
OKLab	oklab(26.3% -0.0256 -0.0361)
OKLCH	oklch(26.3% 0.044 234.7)
XYZ	xyz(1.5861, 1.8644, 3.8900)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2837 #371A0B

analogous

#0B3730 #0B2837 #0B1237

triadic

#0B2837 #370B28 #28370B

tetradic

#0B2837 #300B37 #371A0B #12370B

square

#0B2837 #300B37 #371A0B #12370B

split-complementary

#0B2837 #370B12 #37300B

monochromatic

#05131A #05131A #0B2837 #154D6A #1F729D

Accessibility & contrast

On white

15.29

#0B2837 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#0B2837 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2837

15.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2837	#FFFFFF	#000000	##FFFFFF
##0B2837	1.00	15.29	1.37	15.29
#FFFFFF	15.29	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212838

Deuteranopia (green-blind)

#1B2337

Tritanopia (blue-blind)

#002C2D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0b2837;
/* rgb */ color: rgb(11, 40, 55);
/* oklch */ color: oklch(26.3% 0.044 234.7);

Tailwind

colors: {
  custom: {
    50: '#50616d',
    500: '#0b2837',
    950: '#000000',
  },
}

SCSS

$custom: #0b2837;
$custom-light: #50616d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2837",
  "rgb": {
    "r": 11,
    "g": 40,
    "b": 55
  },
  "hsl": {
    "h": 200.455,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.26303,
    "c": 0.04422,
    "h": 234.7
  },
  "luminance": 0.01865
}

Semantic roles & 50–950 ramp

primary

#0B2837

secondary

#74432A

accent

#793EEA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020507

muted

#78797A

Preview Lab

Preview with #0B2837

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

Preview Lab → · Contrast checker → · Palette generator →