#6C181D#6C181D

#6C181D is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.4% C 0.117 H 22.5°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#6C181D
RGB	rgb(108, 24, 29)
HSL	hsl(356, 64%, 26%)
HSV	hsv(356, 78%, 42%)
CMYK	cmyk(0%, 77.8%, 73.1%, 57.6%)
CIE-LAB	lab(23.44, 36.88, 19.36)
CIE-LCH	lch(23.44, 41.65, 27.70°)
OKLab	oklab(35.43% 0.1081 0.0449)
OKLCH	oklch(35.43% 0.117 22.5)
XYZ	xyz(6.7335, 3.9311, 1.5664)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6C181D #186C67

analogous

#6C1847 #6C181D #6C3D18

triadic

#6C181D #1D6C18 #181D6C

tetradic

#6C181D #476C18 #186C67 #3D186C

square

#6C181D #476C18 #186C67 #3D186C

split-complementary

#6C181D #186C3D #18476C

monochromatic

#190607 #3A0D10 #6C181D #9E232A #D02E38

Accessibility & contrast

On white

11.76

#6C181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#6C181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6C181D

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6C181D	#FFFFFF	#000000	##FFFFFF
##6C181D	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C1C

Deuteranopia (green-blind)

#453E1A

Tritanopia (blue-blind)

#77001B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6c181d;
/* rgb */ color: rgb(108, 24, 29);
/* oklch */ color: oklch(35.4% 0.117 22.5);

Tailwind

colors: {
  custom: {
    50: '#9d5c59',
    500: '#6c181d',
    950: '#000000',
  },
}

SCSS

$custom: #6c181d;
$custom-light: #9d5c59;
$custom-dark: #000000;

JSON

{
  "hex": "#6c181d",
  "rgb": {
    "r": 108,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 356.429,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35431,
    "c": 0.11708,
    "h": 22.5
  },
  "luminance": 0.0393
}

Semantic roles & 50–950 ramp

primary

#6C181D

secondary

#3EA29C

accent

#E7DD41

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6C181D

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

Preview Lab → · Contrast checker → · Palette generator →