#681B15#681B15

#681B15 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.111 H 28.6°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#681B15
RGB	rgb(104, 27, 21)
HSL	hsl(4, 66%, 25%)
HSV	hsv(4, 80%, 41%)
CMYK	cmyk(0%, 74%, 79.8%, 59.2%)
CIE-LAB	lab(22.94, 33.84, 23.76)
CIE-LCH	lch(22.94, 41.35, 35.07°)
OKLab	oklab(34.87% 0.0972 0.0529)
OKLCH	oklch(34.87% 0.111 28.6)
XYZ	xyz(6.2369, 3.7820, 1.1109)
Luminance	0.0378 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681B15 #156268

analogous

#681539 #681B15 #684515

triadic

#681B15 #15681B #1B1568

tetradic

#681B15 #396815 #156268 #451568

square

#681B15 #396815 #156268 #451568

split-complementary

#681B15 #156845 #153968

monochromatic

#190705 #350E0B #681B15 #9B281F #CE352A

Accessibility & contrast

On white

11.96

#681B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#681B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681B15

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681B15	#FFFFFF	#000000	##FFFFFF
##681B15	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C14

Deuteranopia (green-blind)

#443D12

Tritanopia (blue-blind)

#73011A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681b15;
/* rgb */ color: rgb(104, 27, 21);
/* oklch */ color: oklch(34.9% 0.111 28.6);

Tailwind

colors: {
  custom: {
    50: '#9a5d52',
    500: '#681b15',
    950: '#000000',
  },
}

SCSS

$custom: #681b15;
$custom-light: #9a5d52;
$custom-dark: #000000;

JSON

{
  "hex": "#681b15",
  "rgb": {
    "r": 104,
    "g": 27,
    "b": 21
  },
  "hsl": {
    "h": 4.337,
    "s": 66.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34865,
    "c": 0.11067,
    "h": 28.6
  },
  "luminance": 0.03781
}

Semantic roles & 50–950 ramp

primary

#681B15

secondary

#3A989F

accent

#DDE93E

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #681B15

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

Preview Lab → · Contrast checker → · Palette generator →