#681D21#681D21

#681D21 is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.3% C 0.107 H 21.6°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#681D21
RGB	rgb(104, 29, 33)
HSL	hsl(357, 56%, 26%)
HSV	hsv(357, 72%, 41%)
CMYK	cmyk(0%, 72.1%, 68.3%, 59.2%)
CIE-LAB	lab(23.45, 33.63, 16.51)
CIE-LCH	lch(23.45, 37.47, 26.14°)
OKLab	oklab(35.31% 0.0993 0.0393)
OKLCH	oklch(35.31% 0.107 21.6)
XYZ	xyz(6.4235, 3.9325, 1.8594)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681D21 #1D6864

analogous

#681D46 #681D21 #683E1D

triadic

#681D21 #21681D #1D2168

tetradic

#681D21 #46681D #1D6864 #3E1D68

square

#681D21 #46681D #1D6864 #3E1D68

split-complementary

#681D21 #1D683E #1D4668

monochromatic

#180708 #381012 #681D21 #982A30 #C73840

Accessibility & contrast

On white

11.76

#681D21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#681D21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681D21

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681D21	#FFFFFF	#000000	##FFFFFF
##681D21	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312E21

Deuteranopia (green-blind)

#443E1F

Tritanopia (blue-blind)

#73091F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #681d21;
/* rgb */ color: rgb(104, 29, 33);
/* oklch */ color: oklch(35.3% 0.107 21.6);

Tailwind

colors: {
  custom: {
    50: '#995e5c',
    500: '#681d21',
    950: '#000000',
  },
}

SCSS

$custom: #681d21;
$custom-light: #995e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#681d21",
  "rgb": {
    "r": 104,
    "g": 29,
    "b": 33
  },
  "hsl": {
    "h": 356.8,
    "s": 56.391,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35307,
    "c": 0.1068,
    "h": 21.6
  },
  "luminance": 0.03932
}

Semantic roles & 50–950 ramp

primary

#681D21

secondary

#449D98

accent

#E0D848

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0504

muted

#7E7979

Preview Lab

Preview with #681D21

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

Preview Lab → · Contrast checker → · Palette generator →