#6D181F#6D181F

#6D181F is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.7% C 0.118 H 21.4°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#6D181F
RGB	rgb(109, 24, 31)
HSL	hsl(355, 64%, 26%)
HSV	hsv(355, 78%, 43%)
CMYK	cmyk(0%, 78%, 71.6%, 57.3%)
CIE-LAB	lab(23.69, 37.33, 18.37)
CIE-LCH	lch(23.69, 41.61, 26.20°)
OKLab	oklab(35.66% 0.1099 0.043)
OKLCH	oklch(35.66% 0.118 21.4)
XYZ	xyz(6.8814, 4.0044, 1.7067)
Luminance	0.0400 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6D181F #186D66

analogous

#6D1849 #6D181F #6D3B18

triadic

#6D181F #1F6D18 #181F6D

tetradic

#6D181F #496D18 #186D66 #3B186D

square

#6D181F #496D18 #186D66 #3B186D

split-complementary

#6D181F #186D3B #18496D

monochromatic

#190607 #3B0D11 #6D181F #9F232D #D12E3C

Accessibility & contrast

On white

11.66

#6D181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#6D181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6D181F

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6D181F	#FFFFFF	#000000	##FFFFFF
##6D181F	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302D1F

Deuteranopia (green-blind)

#463F1C

Tritanopia (blue-blind)

#78001B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6d181f;
/* rgb */ color: rgb(109, 24, 31);
/* oklch */ color: oklch(35.7% 0.118 21.4);

Tailwind

colors: {
  custom: {
    50: '#9d5d5a',
    500: '#6d181f',
    950: '#000000',
  },
}

SCSS

$custom: #6d181f;
$custom-light: #9d5d5a;
$custom-dark: #000000;

JSON

{
  "hex": "#6d181f",
  "rgb": {
    "r": 109,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 355.059,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35661,
    "c": 0.11801,
    "h": 21.4
  },
  "luminance": 0.04003
}

Semantic roles & 50–950 ramp

primary

#6D181F

secondary

#3EA39A

accent

#E7D941

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6D181F

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

Preview Lab → · Contrast checker → · Palette generator →