#681C1F#681C1F

#681C1F is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.1% C 0.108 H 22.6°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#681C1F
RGB	rgb(104, 28, 31)
HSL	hsl(358, 58%, 26%)
HSV	hsv(358, 73%, 41%)
CMYK	cmyk(0%, 73.1%, 70.2%, 59.2%)
CIE-LAB	lab(23.25, 33.95, 17.60)
CIE-LCH	lch(23.25, 38.24, 27.41°)
OKLab	oklab(35.15% 0.0999 0.0415)
OKLCH	oklch(35.15% 0.108 22.6)
XYZ	xyz(6.3722, 3.8734, 1.7082)
Luminance	0.0387 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681C1F #1C6865

analogous

#681C45 #681C1F #683F1C

triadic

#681C1F #1F681C #1C1F68

tetradic

#681C1F #45681C #1C6865 #3F1C68

square

#681C1F #45681C #1C6865 #3F1C68

split-complementary

#681C1F #1C683F #1C4568

monochromatic

#180607 #380F11 #681C1F #98292D #C8363C

Accessibility & contrast

On white

11.83

#681C1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#681C1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681C1F

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681C1F	#FFFFFF	#000000	##FFFFFF
##681C1F	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D1E

Deuteranopia (green-blind)

#443D1D

Tritanopia (blue-blind)

#73071E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681c1f;
/* rgb */ color: rgb(104, 28, 31);
/* oklch */ color: oklch(35.1% 0.108 22.6);

Tailwind

colors: {
  custom: {
    50: '#995e5a',
    500: '#681c1f',
    950: '#000000',
  },
}

SCSS

$custom: #681c1f;
$custom-light: #995e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#681c1f",
  "rgb": {
    "r": 104,
    "g": 28,
    "b": 31
  },
  "hsl": {
    "h": 357.632,
    "s": 57.576,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35147,
    "c": 0.10812,
    "h": 22.6
  },
  "luminance": 0.03872
}

Semantic roles & 50–950 ramp

primary

#681C1F

secondary

#439D99

accent

#E1DB47

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0503

muted

#7F7978

Preview Lab

Preview with #681C1F

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

Preview Lab → · Contrast checker → · Palette generator →