#681B2B#681B2B

#681B2B is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.3% C 0.109 H 12.7°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#681B2B
RGB	rgb(104, 27, 43)
HSL	hsl(348, 59%, 26%)
HSV	hsv(348, 74%, 41%)
CMYK	cmyk(0%, 74%, 58.7%, 59.2%)
CIE-LAB	lab(23.35, 35.27, 9.56)
CIE-LCH	lch(23.35, 36.54, 15.16°)
OKLab	oklab(35.3% 0.1065 0.024)
OKLCH	oklch(35.3% 0.109 12.7)
XYZ	xyz(6.5375, 3.9022, 2.6940)
Luminance	0.0390 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#681B2B #1B6858

analogous

#681B51 #681B2B #68311B

triadic

#681B2B #2B681B #1B2B68

tetradic

#681B2B #51681B #1B6858 #311B68

square

#681B2B #51681B #1B6858 #311B68

split-complementary

#681B2B #1B6831 #1B5168

monochromatic

#18060A #370E17 #681B2B #99283F #C93453

Accessibility & contrast

On white

11.80

#681B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#681B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #681B2B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##681B2B	#FFFFFF	#000000	##FFFFFF
##681B2B	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2E2B

Deuteranopia (green-blind)

#423D29

Tritanopia (blue-blind)

#720A21

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #681b2b;
/* rgb */ color: rgb(104, 27, 43);
/* oklch */ color: oklch(35.3% 0.109 12.7);

Tailwind

colors: {
  custom: {
    50: '#985e64',
    500: '#681b2b',
    950: '#000000',
  },
}

SCSS

$custom: #681b2b;
$custom-light: #985e64;
$custom-dark: #000000;

JSON

{
  "hex": "#681b2b",
  "rgb": {
    "r": 104,
    "g": 27,
    "b": 43
  },
  "hsl": {
    "h": 347.532,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35302,
    "c": 0.10914,
    "h": 12.7
  },
  "luminance": 0.03901
}

Semantic roles & 50–950 ramp

primary

#681B2B

secondary

#429D8A

accent

#E2C246

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #681B2B

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

Preview Lab → · Contrast checker → · Palette generator →