#00151D#00151D

#00151D is a very dark, muted cyan. Relative luminance 0.006; OKLCH L 18.2% C 0.034 H 223.7°. Best body text is #FFFFFF at 18.67:1 contrast (WCAG AA passes).

Color values

HEX	#00151D
RGB	rgb(0, 21, 29)
HSL	hsl(197, 100%, 6%)
HSV	hsv(197, 100%, 11%)
CMYK	cmyk(100%, 27.6%, 0%, 88.6%)
CIE-LAB	lab(5.65, -4.27, -7.88)
CIE-LCH	lch(5.65, 8.96, 241.55°)
OKLab	oklab(18.18% -0.0246 -0.0235)
OKLCH	oklch(18.18% 0.034 223.7)
XYZ	xyz(0.4898, 0.6250, 1.2570)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00151D #1D0800

analogous

#001D16 #00151D #00061D

triadic

#00151D #1D0015 #151D00

tetradic

#00151D #16001D #1D0800 #061D00

square

#00151D #16001D #1D0800 #061D00

split-complementary

#00151D #1D0006 #1D1600

monochromatic

#00161F #00161F #00161F #00415A #006E97

Accessibility & contrast

On white

18.67

#00151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#00151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00151D

18.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00151D	#FFFFFF	#000000	##FFFFFF
##00151D	1.00	18.67	1.13	18.67
#FFFFFF	18.67	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10141D

Deuteranopia (green-blind)

#0C111D

Tritanopia (blue-blind)

#001718

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #00151d;
/* rgb */ color: rgb(0, 21, 29);
/* oklch */ color: oklch(18.2% 0.034 223.7);

Tailwind

colors: {
  custom: {
    50: '#465258',
    500: '#00151d',
    950: '#000000',
  },
}

SCSS

$custom: #00151d;
$custom-light: #465258;
$custom-dark: #000000;

JSON

{
  "hex": "#00151d",
  "rgb": {
    "r": 0,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 196.552,
    "s": 100,
    "l": 5.686
  },
  "oklch": {
    "l": 0.1818,
    "c": 0.03406,
    "h": 223.7
  },
  "luminance": 0.00625
}

Semantic roles & 50–950 ramp

primary

#00151D

secondary

#672912

accent

#6429FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000203

muted

#767878

Preview Lab

Preview with #00151D

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

Preview Lab → · Contrast checker → · Palette generator →