#001B2C#001B2C

#001B2C is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.1% C 0.048 H 239.2°. Best body text is #FFFFFF at 17.60:1 contrast (WCAG AA passes).

Color values

HEX	#001B2C
RGB	rgb(0, 27, 44)
HSL	hsl(203, 100%, 9%)
HSV	hsv(203, 100%, 17%)
CMYK	cmyk(100%, 38.6%, 0%, 82.7%)
CIE-LAB	lab(8.70, -2.83, -14.44)
CIE-LCH	lch(8.70, 14.71, 258.89°)
OKLab	oklab(21.14% -0.0245 -0.0411)
OKLCH	oklch(21.14% 0.048 239.2)
XYZ	xyz(0.8464, 0.9656, 2.5242)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001B2C #2C1100

analogous

#002C27 #001B2C #00052C

triadic

#001B2C #2C001B #1B2C00

tetradic

#001B2C #27002C #2C1100 #052C00

square

#001B2C #27002C #2C1100 #052C00

split-complementary

#001B2C #2C0005 #2C2700

monochromatic

#00131F #00131F #001B2C #004169 #0066A6

Accessibility & contrast

On white

17.60

#001B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#001B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001B2C

17.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001B2C	#FFFFFF	#000000	##FFFFFF
##001B2C	1.00	17.60	1.19	17.60
#FFFFFF	17.60	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131B2D

Deuteranopia (green-blind)

#0C172C

Tritanopia (blue-blind)

#001F21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #001b2c;
/* rgb */ color: rgb(0, 27, 44);
/* oklch */ color: oklch(21.1% 0.048 239.2);

Tailwind

colors: {
  custom: {
    50: '#485765',
    500: '#001b2c',
    950: '#000000',
  },
}

SCSS

$custom: #001b2c;
$custom-light: #485765;
$custom-dark: #000000;

JSON

{
  "hex": "#001b2c",
  "rgb": {
    "r": 0,
    "g": 27,
    "b": 44
  },
  "hsl": {
    "h": 203.182,
    "s": 100,
    "l": 8.627
  },
  "oklch": {
    "l": 0.21142,
    "c": 0.04779,
    "h": 239.2
  },
  "luminance": 0.00966
}

Semantic roles & 50–950 ramp

primary

#001B2C

secondary

#733914

accent

#7C29FF

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010305

muted

#77787A

Preview Lab

Preview with #001B2C

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

Preview Lab → · Contrast checker → · Palette generator →