#6D181D#6D181D

#6D181D is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.6% C 0.118 H 22.6°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#6D181D
RGB	rgb(109, 24, 29)
HSL	hsl(356, 64%, 26%)
HSV	hsv(356, 78%, 43%)
CMYK	cmyk(0%, 78%, 73.4%, 57.3%)
CIE-LAB	lab(23.65, 37.22, 19.67)
CIE-LCH	lch(23.65, 42.09, 27.85°)
OKLab	oklab(35.63% 0.1091 0.0455)
OKLCH	oklch(35.63% 0.118 22.6)
XYZ	xyz(6.8558, 3.9942, 1.5721)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6D181D #186D68

analogous

#6D1847 #6D181D #6D3D18

triadic

#6D181D #1D6D18 #181D6D

tetradic

#6D181D #476D18 #186D68 #3D186D

square

#6D181D #476D18 #186D68 #3D186D

split-complementary

#6D181D #186D3D #18476D

monochromatic

#190607 #3B0D10 #6D181D #9F232A #D12E38

Accessibility & contrast

On white

11.68

#6D181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#6D181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6D181D

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6D181D	#FFFFFF	#000000	##FFFFFF
##6D181D	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)

#312D1C

Deuteranopia (green-blind)

#463F1A

Tritanopia (blue-blind)

#78001B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6d181d;
/* rgb */ color: rgb(109, 24, 29);
/* oklch */ color: oklch(35.6% 0.118 22.6);

Tailwind

colors: {
  custom: {
    50: '#9d5d59',
    500: '#6d181d',
    950: '#000000',
  },
}

SCSS

$custom: #6d181d;
$custom-light: #9d5d59;
$custom-dark: #000000;

JSON

{
  "hex": "#6d181d",
  "rgb": {
    "r": 109,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 356.471,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35625,
    "c": 0.11819,
    "h": 22.6
  },
  "luminance": 0.03993
}

Semantic roles & 50–950 ramp

primary

#6D181D

secondary

#3EA39D

accent

#E7DD41

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #6D181D

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

Preview Lab → · Contrast checker → · Palette generator →