#681B1F#681B1F

#681B1F is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.109 H 22.1°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#681B1F
RGB	rgb(104, 27, 31)
HSL	hsl(357, 59%, 26%)
HSV	hsv(357, 74%, 41%)
CMYK	cmyk(0%, 74%, 70.2%, 59.2%)
CIE-LAB	lab(23.09, 34.38, 17.41)
CIE-LCH	lch(23.09, 38.53, 26.85°)
OKLab	oklab(35.03% 0.1012 0.041)
OKLCH	oklch(35.03% 0.109 22.1)
XYZ	xyz(6.3488, 3.8268, 1.7004)
Luminance	0.0383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681B1F #1B6864

analogous

#681B45 #681B1F #683D1B

triadic

#681B1F #1F681B #1B1F68

tetradic

#681B1F #45681B #1B6864 #3D1B68

square

#681B1F #45681B #1B6864 #3D1B68

split-complementary

#681B1F #1B683D #1B4568

monochromatic

#180607 #370E11 #681B1F #99282D #C9343C

Accessibility & contrast

On white

11.90

#681B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#681B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681B1F

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681B1F	#FFFFFF	#000000	##FFFFFF
##681B1F	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302D1F

Deuteranopia (green-blind)

#443D1D

Tritanopia (blue-blind)

#73051D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #681b1f;
/* rgb */ color: rgb(104, 27, 31);
/* oklch */ color: oklch(35.0% 0.109 22.1);

Tailwind

colors: {
  custom: {
    50: '#995d5a',
    500: '#681b1f',
    950: '#000000',
  },
}

SCSS

$custom: #681b1f;
$custom-light: #995d5a;
$custom-dark: #000000;

JSON

{
  "hex": "#681b1f",
  "rgb": {
    "r": 104,
    "g": 27,
    "b": 31
  },
  "hsl": {
    "h": 356.883,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35029,
    "c": 0.10923,
    "h": 22.1
  },
  "luminance": 0.03826
}

Semantic roles & 50–950 ramp

primary

#681B1F

secondary

#429D98

accent

#E2DA46

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #681B1F

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

Preview Lab → · Contrast checker → · Palette generator →