#681B18#681B18

#681B18 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.110 H 26.8°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#681B18
RGB	rgb(104, 27, 24)
HSL	hsl(2, 63%, 25%)
HSV	hsv(2, 77%, 41%)
CMYK	cmyk(0%, 74%, 76.9%, 59.2%)
CIE-LAB	lab(22.98, 33.98, 21.89)
CIE-LCH	lch(22.98, 40.42, 32.79°)
OKLab	oklab(34.91% 0.0983 0.0496)
OKLCH	oklch(34.91% 0.11 26.8)
XYZ	xyz(6.2664, 3.7938, 1.2663)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681B18 #186568

analogous

#68183D #681B18 #684318

triadic

#681B18 #18681B #1B1868

tetradic

#681B18 #3D6818 #186568 #431868

square

#681B18 #3D6818 #186568 #431868

split-complementary

#681B18 #186843 #183D68

monochromatic

#190606 #360E0D #681B18 #9A2823 #CB352F

Accessibility & contrast

On white

11.94

#681B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#681B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681B18

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681B18	#FFFFFF	#000000	##FFFFFF
##681B18	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C17

Deuteranopia (green-blind)

#443D15

Tritanopia (blue-blind)

#73021B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681b18;
/* rgb */ color: rgb(104, 27, 24);
/* oklch */ color: oklch(34.9% 0.110 26.8);

Tailwind

colors: {
  custom: {
    50: '#9a5d55',
    500: '#681b18',
    950: '#000000',
  },
}

SCSS

$custom: #681b18;
$custom-light: #9a5d55;
$custom-dark: #000000;

JSON

{
  "hex": "#681b18",
  "rgb": {
    "r": 104,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 2.25,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34908,
    "c": 0.11016,
    "h": 26.8
  },
  "luminance": 0.03793
}

Semantic roles & 50–950 ramp

primary

#681B18

secondary

#3E9A9E

accent

#DFE642

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #681B18

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

Preview Lab → · Contrast checker → · Palette generator →