#6C181A#6C181A

#6C181A is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.4% C 0.117 H 24.4°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#6C181A
RGB	rgb(108, 24, 26)
HSL	hsl(359, 64%, 26%)
HSV	hsv(359, 78%, 42%)
CMYK	cmyk(0%, 77.8%, 75.9%, 57.6%)
CIE-LAB	lab(23.40, 36.72, 21.29)
CIE-LCH	lch(23.40, 42.44, 30.10°)
OKLab	oklab(35.38% 0.1069 0.0485)
OKLCH	oklch(35.38% 0.117 24.4)
XYZ	xyz(6.6982, 3.9170, 1.3804)
Luminance	0.0392 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6C181A #186C6A

analogous

#6C1844 #6C181A #6C4018

triadic

#6C181A #1A6C18 #181A6C

tetradic

#6C181A #446C18 #186C6A #40186C

square

#6C181A #446C18 #186C6A #40186C

split-complementary

#6C181A #186C40 #18446C

monochromatic

#190606 #3A0D0E #6C181A #9E2326 #D02E32

Accessibility & contrast

On white

11.78

#6C181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#6C181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6C181A

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6C181A	#FFFFFF	#000000	##FFFFFF
##6C181A	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C19

Deuteranopia (green-blind)

#463E17

Tritanopia (blue-blind)

#77001A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6c181a;
/* rgb */ color: rgb(108, 24, 26);
/* oklch */ color: oklch(35.4% 0.117 24.4);

Tailwind

colors: {
  custom: {
    50: '#9d5c56',
    500: '#6c181a',
    950: '#000000',
  },
}

SCSS

$custom: #6c181a;
$custom-light: #9d5c56;
$custom-dark: #000000;

JSON

{
  "hex": "#6c181a",
  "rgb": {
    "r": 108,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 358.571,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35381,
    "c": 0.11741,
    "h": 24.4
  },
  "luminance": 0.03916
}

Semantic roles & 50–950 ramp

primary

#6C181A

secondary

#3EA29F

accent

#E7E341

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #6C181A

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

Preview Lab → · Contrast checker → · Palette generator →