#0B1F2D#0B1F2D

#0B1F2D is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 23.0% C 0.038 H 241.5°. Best body text is #FFFFFF at 16.82:1 contrast (WCAG AA passes).

Color values

HEX	#0B1F2D
RGB	rgb(11, 31, 45)
HSL	hsl(205, 61%, 11%)
HSV	hsv(205, 76%, 18%)
CMYK	cmyk(75.6%, 31.1%, 0%, 82.4%)
CIE-LAB	lab(10.85, -2.60, -11.76)
CIE-LCH	lch(10.85, 12.04, 257.55°)
OKLab	oklab(23.03% -0.0179 -0.033)
OKLCH	oklch(23.03% 0.038 241.5)
XYZ	xyz(1.1015, 1.2405, 2.6635)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1F2D #2D190B

analogous

#0B2D2A #0B1F2D #0B0E2D

triadic

#0B1F2D #2D0B1F #1F2D0B

tetradic

#0B1F2D #2A0B2D #2D190B #0E2D0B

square

#0B1F2D #2A0B2D #2D190B #0E2D0B

split-complementary

#0B1F2D #2D0B0E #2D2A0B

monochromatic

#061119 #061119 #0B1F2D #17415E #23638F

Accessibility & contrast

On white

16.82

#0B1F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0B1F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1F2D

16.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1F2D	#FFFFFF	#000000	##FFFFFF
##0B1F2D	1.00	16.82	1.25	16.82
#FFFFFF	16.82	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191F2E

Deuteranopia (green-blind)

#141C2D

Tritanopia (blue-blind)

#002224

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0b1f2d;
/* rgb */ color: rgb(11, 31, 45);
/* oklch */ color: oklch(23.0% 0.038 241.5);

Tailwind

colors: {
  custom: {
    50: '#4e5a66',
    500: '#0b1f2d',
    950: '#000000',
  },
}

SCSS

$custom: #0b1f2d;
$custom-light: #4e5a66;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1f2d",
  "rgb": {
    "r": 11,
    "g": 31,
    "b": 45
  },
  "hsl": {
    "h": 204.706,
    "s": 60.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.23025,
    "c": 0.03759,
    "h": 241.5
  },
  "luminance": 0.01241
}

Semantic roles & 50–950 ramp

primary

#0B1F2D

secondary

#69442A

accent

#8644E4

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #0B1F2D

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

Preview Lab → · Contrast checker → · Palette generator →