#673D3C#673D3C

#673D3C is a dark, muted red. Relative luminance 0.065; OKLCH L 41.0% C 0.059 H 21.4°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#673D3C
RGB	rgb(103, 61, 60)
HSL	hsl(1, 26%, 32%)
HSV	hsv(1, 42%, 40%)
CMYK	cmyk(0%, 40.8%, 41.7%, 59.6%)
CIE-LAB	lab(30.75, 18.31, 8.46)
CIE-LCH	lch(30.75, 20.17, 24.80°)
OKLab	oklab(41% 0.0554 0.0217)
OKLCH	oklch(41% 0.059 21.4)
XYZ	xyz(8.0782, 6.5479, 5.1125)
Luminance	0.0655 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D3C #3C6667

analogous

#673C51 #673D3C #67533C

triadic

#673D3C #3C673D #3D3C67

tetradic

#673D3C #51673C #3C6667 #533C67

square

#673D3C #51673C #3C6667 #533C67

split-complementary

#673D3C #3C6753 #3C5167

monochromatic

#1A0F0F #402625 #673D3C #8E5453 #AC7271

Accessibility & contrast

On white

9.09

#673D3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#673D3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D3C

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D3C	#FFFFFF	#000000	##FFFFFF
##673D3C	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46433C

Deuteranopia (green-blind)

#504C3B

Tritanopia (blue-blind)

#6F383D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d3c;
/* rgb */ color: rgb(103, 61, 60);
/* oklch */ color: oklch(41.0% 0.059 21.4);

Tailwind

colors: {
  custom: {
    50: '#947371',
    500: '#673d3c',
    950: '#000000',
  },
}

SCSS

$custom: #673d3c;
$custom-light: #947371;
$custom-dark: #000000;

JSON

{
  "hex": "#673d3c",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 60
  },
  "hsl": {
    "h": 1.395,
    "s": 26.38,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41004,
    "c": 0.05947,
    "h": 21.4
  },
  "luminance": 0.06547
}

Semantic roles & 50–950 ramp

primary

#673D3C

secondary

#689697

accent

#C1C365

background

#F9F7F6

surface

#F2EDEC

border

#CCC8C7

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673D3C

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

Preview Lab → · Contrast checker → · Palette generator →