#673F37#673F37

#673F37 is a dark, muted red. Relative luminance 0.067; OKLCH L 41.3% C 0.058 H 31.9°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#673F37
RGB	rgb(103, 63, 55)
HSL	hsl(10, 30%, 31%)
HSV	hsv(10, 47%, 40%)
CMYK	cmyk(0%, 38.8%, 46.6%, 59.6%)
CIE-LAB	lab(31.15, 16.45, 12.22)
CIE-LCH	lch(31.15, 20.49, 36.61°)
OKLab	oklab(41.27% 0.0494 0.0308)
OKLCH	oklch(41.27% 0.058 31.9)
XYZ	xyz(8.0610, 6.7151, 4.4853)
Luminance	0.0671 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673F37 #375F67

analogous

#673747 #673F37 #675737

triadic

#673F37 #37673F #3F3767

tetradic

#673F37 #476737 #375F67 #573767

square

#673F37 #476737 #375F67 #573767

split-complementary

#673F37 #376757 #374767

monochromatic

#170E0C #3F2722 #673F37 #8F574C #AF7569

Accessibility & contrast

On white

8.96

#673F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#673F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673F37

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673F37	#FFFFFF	#000000	##FFFFFF
##673F37	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484436

Deuteranopia (green-blind)

#524C37

Tritanopia (blue-blind)

#6F393D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #673f37;
/* rgb */ color: rgb(103, 63, 55);
/* oklch */ color: oklch(41.3% 0.058 31.9);

Tailwind

colors: {
  custom: {
    50: '#94746d',
    500: '#673f37',
    950: '#000000',
  },
}

SCSS

$custom: #673f37;
$custom-light: #94746d;
$custom-dark: #000000;

JSON

{
  "hex": "#673f37",
  "rgb": {
    "r": 103,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 10,
    "s": 30.38,
    "l": 30.98
  },
  "oklch": {
    "l": 0.41268,
    "c": 0.05816,
    "h": 31.9
  },
  "luminance": 0.06714
}

Semantic roles & 50–950 ramp

primary

#673F37

secondary

#628F97

accent

#B6C761

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673F37

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

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