#06151B#06151B

#06151B is a very dark, muted cyan. Relative luminance 0.007; OKLCH L 18.5% C 0.024 H 225.6°. Best body text is #FFFFFF at 18.57:1 contrast (WCAG AA passes).

Color values

HEX	#06151B
RGB	rgb(6, 21, 27)
HSL	hsl(197, 64%, 6%)
HSV	hsv(197, 78%, 11%)
CMYK	cmyk(77.8%, 22.2%, 0%, 89.4%)
CIE-LAB	lab(5.91, -3.31, -5.91)
CIE-LCH	lch(5.91, 6.77, 240.77°)
OKLab	oklab(18.53% -0.0171 -0.0175)
OKLCH	oklch(18.53% 0.024 225.6)
XYZ	xyz(0.5410, 0.6541, 1.1344)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#06151B #1B0C06

analogous

#061B17 #06151B #060B1B

triadic

#06151B #1B0615 #151B06

tetradic

#06151B #17061B #1B0C06 #0B1B06

square

#06151B #17061B #1B0C06 #0B1B06

split-complementary

#06151B #1B060B #1B1706

monochromatic

#061319 #061319 #06151B #113C4D #1C637F

Accessibility & contrast

On white

18.57

#06151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#06151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #06151B

18.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##06151B	#FFFFFF	#000000	##FFFFFF
##06151B	1.00	18.57	1.13	18.57
#FFFFFF	18.57	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12141B

Deuteranopia (green-blind)

#0F121B

Tritanopia (blue-blind)

#001717

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #06151b;
/* rgb */ color: rgb(6, 21, 27);
/* oklch */ color: oklch(18.5% 0.024 225.6);

Tailwind

colors: {
  custom: {
    50: '#495257',
    500: '#06151b',
    950: '#000000',
  },
}

SCSS

$custom: #06151b;
$custom-light: #495257;
$custom-dark: #000000;

JSON

{
  "hex": "#06151b",
  "rgb": {
    "r": 6,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 197.143,
    "s": 63.636,
    "l": 6.471
  },
  "oklch": {
    "l": 0.1853,
    "c": 0.02444,
    "h": 225.6
  },
  "luminance": 0.00654
}

Semantic roles & 50–950 ramp

primary

#06151B

secondary

#5A3223

accent

#7041E7

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000203

muted

#777878

Preview Lab

Preview with #06151B

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

Preview Lab → · Contrast checker → · Palette generator →