#673D39#673D39

#673D39 is a dark, moderate red. Relative luminance 0.065; OKLCH L 40.9% C 0.060 H 25.9°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#673D39
RGB	rgb(103, 61, 57)
HSL	hsl(5, 29%, 31%)
HSV	hsv(5, 45%, 40%)
CMYK	cmyk(0%, 40.8%, 44.7%, 59.6%)
CIE-LAB	lab(30.68, 17.92, 10.29)
CIE-LCH	lch(30.68, 20.67, 29.87°)
OKLab	oklab(40.92% 0.054 0.0262)
OKLCH	oklch(40.92% 0.06 25.9)
XYZ	xyz(8.0012, 6.5171, 4.7066)
Luminance	0.0652 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D39 #396367

analogous

#67394C #673D39 #675439

triadic

#673D39 #39673D #3D3967

tetradic

#673D39 #4C6739 #396367 #543967

square

#673D39 #4C6739 #396367 #543967

split-complementary

#673D39 #396754 #394C67

monochromatic

#180E0D #402623 #673D39 #8E544F #AE726C

Accessibility & contrast

On white

9.12

#673D39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#673D39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D39

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D39	#FFFFFF	#000000	##FFFFFF
##673D39	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)

#464339

Deuteranopia (green-blind)

#504B38

Tritanopia (blue-blind)

#6F373C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d39;
/* rgb */ color: rgb(103, 61, 57);
/* oklch */ color: oklch(40.9% 0.060 25.9);

Tailwind

colors: {
  custom: {
    50: '#94736f',
    500: '#673d39',
    950: '#000000',
  },
}

SCSS

$custom: #673d39;
$custom-light: #94736f;
$custom-dark: #000000;

JSON

{
  "hex": "#673d39",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 5.217,
    "s": 28.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40924,
    "c": 0.06,
    "h": 25.9
  },
  "luminance": 0.06516
}

Semantic roles & 50–950 ramp

primary

#673D39

secondary

#659397

accent

#BCC563

background

#F9F7F6

surface

#F2EDEC

border

#CCC8C7

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673D39

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

Preview Lab → · Contrast checker → · Palette generator →