#00151F#00151F

#00151F is a very dark, muted cyan. Relative luminance 0.006; OKLCH L 18.3% C 0.036 H 229.3°. Best body text is #FFFFFF at 18.63:1 contrast (WCAG AA passes).

Color values

HEX	#00151F
RGB	rgb(0, 21, 31)
HSL	hsl(199, 100%, 6%)
HSV	hsv(199, 100%, 12%)
CMYK	cmyk(100%, 32.3%, 0%, 87.8%)
CIE-LAB	lab(5.74, -3.62, -9.28)
CIE-LCH	lch(5.74, 9.96, 248.70°)
OKLab	oklab(18.31% -0.0236 -0.0274)
OKLCH	oklch(18.31% 0.036 229.3)
XYZ	xyz(0.5154, 0.6352, 1.3915)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00151F #1F0A00

analogous

#001F19 #00151F #00051F

triadic

#00151F #1F0015 #151F00

tetradic

#00151F #19001F #1F0A00 #051F00

square

#00151F #19001F #1F0A00 #051F00

split-complementary

#00151F #1F0005 #1F1900

monochromatic

#00151F #00151F #00151F #003E5C #006899

Accessibility & contrast

On white

18.63

#00151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#00151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00151F

18.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00151F	#FFFFFF	#000000	##FFFFFF
##00151F	1.00	18.63	1.13	18.63
#FFFFFF	18.63	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10151F

Deuteranopia (green-blind)

#0B111F

Tritanopia (blue-blind)

#001818

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #00151f;
/* rgb */ color: rgb(0, 21, 31);
/* oklch */ color: oklch(18.3% 0.036 229.3);

Tailwind

colors: {
  custom: {
    50: '#46525a',
    500: '#00151f',
    950: '#000000',
  },
}

SCSS

$custom: #00151f;
$custom-light: #46525a;
$custom-dark: #000000;

JSON

{
  "hex": "#00151f",
  "rgb": {
    "r": 0,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 199.355,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.18311,
    "c": 0.0362,
    "h": 229.3
  },
  "luminance": 0.00635
}

Semantic roles & 50–950 ramp

primary

#00151F

secondary

#682E12

accent

#6E29FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000203

muted

#767878

Preview Lab

Preview with #00151F

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

Preview Lab → · Contrast checker → · Palette generator →