#6C181F#6C181F

#6C181F is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.5% C 0.117 H 21.2°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#6C181F
RGB	rgb(108, 24, 31)
HSL	hsl(355, 64%, 26%)
HSV	hsv(355, 78%, 42%)
CMYK	cmyk(0%, 77.8%, 71.3%, 57.6%)
CIE-LAB	lab(23.48, 36.99, 18.07)
CIE-LCH	lch(23.48, 41.17, 26.03°)
OKLab	oklab(35.47% 0.109 0.0424)
OKLCH	oklch(35.47% 0.117 21.2)
XYZ	xyz(6.7590, 3.9414, 1.7009)
Luminance	0.0394 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6C181F #186C65

analogous

#6C1849 #6C181F #6C3B18

triadic

#6C181F #1F6C18 #181F6C

tetradic

#6C181F #496C18 #186C65 #3B186C

square

#6C181F #496C18 #186C65 #3B186C

split-complementary

#6C181F #186C3B #18496C

monochromatic

#190607 #3A0D11 #6C181F #9E232D #D02E3C

Accessibility & contrast

On white

11.74

#6C181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#6C181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6C181F

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6C181F	#FFFFFF	#000000	##FFFFFF
##6C181F	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302D1F

Deuteranopia (green-blind)

#453E1C

Tritanopia (blue-blind)

#77001B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6c181f;
/* rgb */ color: rgb(108, 24, 31);
/* oklch */ color: oklch(35.5% 0.117 21.2);

Tailwind

colors: {
  custom: {
    50: '#9c5c5a',
    500: '#6c181f',
    950: '#000000',
  },
}

SCSS

$custom: #6c181f;
$custom-light: #9c5c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#6c181f",
  "rgb": {
    "r": 108,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 355,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35467,
    "c": 0.11691,
    "h": 21.2
  },
  "luminance": 0.0394
}

Semantic roles & 50–950 ramp

primary

#6C181F

secondary

#3EA299

accent

#E7D941

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6C181F

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

Preview Lab → · Contrast checker → · Palette generator →