#681B1D#681B1D

#681B1D is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.109 H 23.5°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#681B1D
RGB	rgb(104, 27, 29)
HSL	hsl(358, 59%, 26%)
HSV	hsv(358, 74%, 41%)
CMYK	cmyk(0%, 74%, 72.1%, 59.2%)
CIE-LAB	lab(23.06, 34.26, 18.70)
CIE-LCH	lch(23.06, 39.03, 28.63°)
OKLab	oklab(34.99% 0.1004 0.0436)
OKLCH	oklch(34.99% 0.109 23.5)
XYZ	xyz(6.3233, 3.8166, 1.5659)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681B1D #1B6866

analogous

#681B43 #681B1D #683F1B

triadic

#681B1D #1D681B #1B1D68

tetradic

#681B1D #43681B #1B6866 #3F1B68

square

#681B1D #43681B #1B6866 #3F1B68

split-complementary

#681B1D #1B683F #1B4368

monochromatic

#180607 #370E0F #681B1D #99282B #C93438

Accessibility & contrast

On white

11.91

#681B1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#681B1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681B1D

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681B1D	#FFFFFF	#000000	##FFFFFF
##681B1D	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C1C

Deuteranopia (green-blind)

#443D1B

Tritanopia (blue-blind)

#73041D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681b1d;
/* rgb */ color: rgb(104, 27, 29);
/* oklch */ color: oklch(35.0% 0.109 23.5);

Tailwind

colors: {
  custom: {
    50: '#995d59',
    500: '#681b1d',
    950: '#000000',
  },
}

SCSS

$custom: #681b1d;
$custom-light: #995d59;
$custom-dark: #000000;

JSON

{
  "hex": "#681b1d",
  "rgb": {
    "r": 104,
    "g": 27,
    "b": 29
  },
  "hsl": {
    "h": 358.442,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34992,
    "c": 0.10945,
    "h": 23.5
  },
  "luminance": 0.03816
}

Semantic roles & 50–950 ramp

primary

#681B1D

secondary

#429D9B

accent

#E2DE46

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #681B1D

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

Preview Lab → · Contrast checker → · Palette generator →