#6D181B#6D181B

#6D181B is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.6% C 0.118 H 23.9°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#6D181B
RGB	rgb(109, 24, 27)
HSL	hsl(358, 64%, 26%)
HSV	hsv(358, 78%, 43%)
CMYK	cmyk(0%, 78%, 75.2%, 57.3%)
CIE-LAB	lab(23.62, 37.11, 20.95)
CIE-LCH	lch(23.62, 42.62, 29.44°)
OKLab	oklab(35.59% 0.1083 0.0479)
OKLCH	oklch(35.59% 0.118 23.9)
XYZ	xyz(6.8319, 3.9847, 1.4461)
Luminance	0.0398 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6D181B #186D6A

analogous

#6D1845 #6D181B #6D3F18

triadic

#6D181B #1B6D18 #181B6D

tetradic

#6D181B #456D18 #186D6A #3F186D

square

#6D181B #456D18 #186D6A #3F186D

split-complementary

#6D181B #186D3F #18456D

monochromatic

#190606 #3B0D0F #6D181B #9F2327 #D12E34

Accessibility & contrast

On white

11.69

#6D181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#6D181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6D181B

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6D181B	#FFFFFF	#000000	##FFFFFF
##6D181B	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D1A

Deuteranopia (green-blind)

#463F18

Tritanopia (blue-blind)

#78001A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6d181b;
/* rgb */ color: rgb(109, 24, 27);
/* oklch */ color: oklch(35.6% 0.118 23.9);

Tailwind

colors: {
  custom: {
    50: '#9e5d57',
    500: '#6d181b',
    950: '#000000',
  },
}

SCSS

$custom: #6d181b;
$custom-light: #9e5d57;
$custom-dark: #000000;

JSON

{
  "hex": "#6d181b",
  "rgb": {
    "r": 109,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 357.882,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35591,
    "c": 0.1184,
    "h": 23.9
  },
  "luminance": 0.03984
}

Semantic roles & 50–950 ramp

primary

#6D181B

secondary

#3EA39F

accent

#E7E141

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #6D181B

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

Preview Lab → · Contrast checker → · Palette generator →