#6D181C#6D181C

#6D181C is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.6% C 0.118 H 23.3°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#6D181C
RGB	rgb(109, 24, 28)
HSL	hsl(357, 64%, 26%)
HSV	hsv(357, 78%, 43%)
CMYK	cmyk(0%, 78%, 74.3%, 57.3%)
CIE-LAB	lab(23.64, 37.17, 20.31)
CIE-LCH	lch(23.64, 42.35, 28.65°)
OKLab	oklab(35.61% 0.1087 0.0467)
OKLCH	oklch(35.61% 0.118 23.3)
XYZ	xyz(6.8437, 3.9894, 1.5081)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6D181C #186D69

analogous

#6D1846 #6D181C #6D3E18

triadic

#6D181C #1C6D18 #181C6D

tetradic

#6D181C #466D18 #186D69 #3E186D

square

#6D181C #466D18 #186D69 #3E186D

split-complementary

#6D181C #186D3E #18466D

monochromatic

#190606 #3B0D0F #6D181C #9F2329 #D12E36

Accessibility & contrast

On white

11.68

#6D181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#6D181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6D181C

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6D181C	#FFFFFF	#000000	##FFFFFF
##6D181C	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D1B

Deuteranopia (green-blind)

#463F19

Tritanopia (blue-blind)

#78001A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6d181c;
/* rgb */ color: rgb(109, 24, 28);
/* oklch */ color: oklch(35.6% 0.118 23.3);

Tailwind

colors: {
  custom: {
    50: '#9e5d58',
    500: '#6d181c',
    950: '#000000',
  },
}

SCSS

$custom: #6d181c;
$custom-light: #9e5d58;
$custom-dark: #000000;

JSON

{
  "hex": "#6d181c",
  "rgb": {
    "r": 109,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 357.176,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35608,
    "c": 0.1183,
    "h": 23.3
  },
  "luminance": 0.03988
}

Semantic roles & 50–950 ramp

primary

#6D181C

secondary

#3EA39E

accent

#E7DF41

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #6D181C

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

Preview Lab → · Contrast checker → · Palette generator →