#681C1D#681C1D

#681C1D is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.1% C 0.108 H 24.0°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#681C1D
RGB	rgb(104, 28, 29)
HSL	hsl(359, 58%, 26%)
HSV	hsv(359, 73%, 41%)
CMYK	cmyk(0%, 73.1%, 72.1%, 59.2%)
CIE-LAB	lab(23.21, 33.82, 18.89)
CIE-LCH	lch(23.21, 38.74, 29.19°)
OKLab	oklab(35.11% 0.099 0.0441)
OKLCH	oklch(35.11% 0.108 24)
XYZ	xyz(6.3466, 3.8632, 1.5736)
Luminance	0.0386 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681C1D #1C6867

analogous

#681C43 #681C1D #68411C

triadic

#681C1D #1D681C #1C1D68

tetradic

#681C1D #43681C #1C6867 #411C68

square

#681C1D #43681C #1C6867 #411C68

split-complementary

#681C1D #1C6841 #1C4368

monochromatic

#180607 #380F10 #681C1D #98292A #C83638

Accessibility & contrast

On white

11.85

#681C1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#681C1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681C1D

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681C1D	#FFFFFF	#000000	##FFFFFF
##681C1D	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D1C

Deuteranopia (green-blind)

#443D1B

Tritanopia (blue-blind)

#73061D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681c1d;
/* rgb */ color: rgb(104, 28, 29);
/* oklch */ color: oklch(35.1% 0.108 24.0);

Tailwind

colors: {
  custom: {
    50: '#995e59',
    500: '#681c1d',
    950: '#000000',
  },
}

SCSS

$custom: #681c1d;
$custom-light: #995e59;
$custom-dark: #000000;

JSON

{
  "hex": "#681c1d",
  "rgb": {
    "r": 104,
    "g": 28,
    "b": 29
  },
  "hsl": {
    "h": 359.211,
    "s": 57.576,
    "l": 25.882
  },
  "oklch": {
    "l": 0.3511,
    "c": 0.10836,
    "h": 24
  },
  "luminance": 0.03862
}

Semantic roles & 50–950 ramp

primary

#681C1D

secondary

#439D9C

accent

#E1DF47

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0503

muted

#7F7978

Preview Lab

Preview with #681C1D

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

Preview Lab → · Contrast checker → · Palette generator →