#673D38#673D38

#673D38 is a dark, moderate red. Relative luminance 0.065; OKLCH L 40.9% C 0.060 H 27.3°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#673D38
RGB	rgb(103, 61, 56)
HSL	hsl(6, 30%, 31%)
HSV	hsv(6, 46%, 40%)
CMYK	cmyk(0%, 40.8%, 45.6%, 59.6%)
CIE-LAB	lab(30.66, 17.80, 10.91)
CIE-LCH	lch(30.66, 20.87, 31.50°)
OKLab	oklab(40.9% 0.0535 0.0276)
OKLCH	oklch(40.9% 0.06 27.3)
XYZ	xyz(7.9765, 6.5072, 4.5765)
Luminance	0.0651 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D38 #386267

analogous

#67384A #673D38 #675438

triadic

#673D38 #38673D #3D3867

tetradic

#673D38 #4A6738 #386267 #543867

square

#673D38 #4A6738 #386267 #543867

split-complementary

#673D38 #386754 #384A67

monochromatic

#180E0D #3F2622 #673D38 #8F544E #AE726B

Accessibility & contrast

On white

9.12

#673D38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#673D38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D38

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D38	#FFFFFF	#000000	##FFFFFF
##673D38	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464337

Deuteranopia (green-blind)

#504B37

Tritanopia (blue-blind)

#6F373C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d38;
/* rgb */ color: rgb(103, 61, 56);
/* oklch */ color: oklch(40.9% 0.060 27.3);

Tailwind

colors: {
  custom: {
    50: '#94736e',
    500: '#673d38',
    950: '#000000',
  },
}

SCSS

$custom: #673d38;
$custom-light: #94736e;
$custom-dark: #000000;

JSON

{
  "hex": "#673d38",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 56
  },
  "hsl": {
    "h": 6.383,
    "s": 29.56,
    "l": 31.176
  },
  "oklch": {
    "l": 0.40898,
    "c": 0.06024,
    "h": 27.3
  },
  "luminance": 0.06507
}

Semantic roles & 50–950 ramp

primary

#673D38

secondary

#639297

accent

#BBC662

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673D38

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

Preview Lab → · Contrast checker → · Palette generator →