#681D2B#681D2B

#681D2B is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.5% C 0.107 H 13.5°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#681D2B
RGB	rgb(104, 29, 43)
HSL	hsl(349, 56%, 26%)
HSV	hsv(349, 72%, 41%)
CMYK	cmyk(0%, 72.1%, 58.7%, 59.2%)
CIE-LAB	lab(23.66, 34.40, 9.99)
CIE-LCH	lch(23.66, 35.82, 16.19°)
OKLab	oklab(35.54% 0.1037 0.025)
OKLCH	oklch(35.54% 0.107 13.5)
XYZ	xyz(6.5849, 3.9971, 2.7098)
Luminance	0.0400 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681D2B #1D685A

analogous

#681D50 #681D2B #68341D

triadic

#681D2B #2B681D #1D2B68

tetradic

#681D2B #50681D #1D685A #341D68

square

#681D2B #50681D #1D685A #341D68

split-complementary

#681D2B #1D6834 #1D5068

monochromatic

#18070A #381017 #681D2B #982A3F #C73853

Accessibility & contrast

On white

11.67

#681D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#681D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681D2B

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681D2B	#FFFFFF	#000000	##FFFFFF
##681D2B	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302F2B

Deuteranopia (green-blind)

#433E29

Tritanopia (blue-blind)

#720D23

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #681d2b;
/* rgb */ color: rgb(104, 29, 43);
/* oklch */ color: oklch(35.5% 0.107 13.5);

Tailwind

colors: {
  custom: {
    50: '#985f64',
    500: '#681d2b',
    950: '#000000',
  },
}

SCSS

$custom: #681d2b;
$custom-light: #985f64;
$custom-dark: #000000;

JSON

{
  "hex": "#681d2b",
  "rgb": {
    "r": 104,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 348.8,
    "s": 56.391,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35537,
    "c": 0.10667,
    "h": 13.5
  },
  "luminance": 0.03996
}

Semantic roles & 50–950 ramp

primary

#681D2B

secondary

#449D8C

accent

#E0C348

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #681D2B

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

Preview Lab → · Contrast checker → · Palette generator →