#673333#673333

#673333 is a dark, moderate red. Relative luminance 0.055; OKLCH L 38.9% C 0.075 H 21.1°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#673333
RGB	rgb(103, 51, 51)
HSL	hsl(0, 34%, 30%)
HSV	hsv(0, 50%, 40%)
CMYK	cmyk(0%, 50.5%, 50.5%, 59.6%)
CIE-LAB	lab(28.09, 23.22, 10.64)
CIE-LCH	lch(28.09, 25.54, 24.62°)
OKLab	oklab(38.9% 0.0697 0.0269)
OKLCH	oklch(38.9% 0.075 21.1)
XYZ	xyz(7.3754, 5.4910, 3.8028)
Luminance	0.0549 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673333 #336767

analogous

#67334D #673333 #674D33

triadic

#673333 #336733 #333367

tetradic

#673333 #4D6733 #336767 #4D3367

square

#673333 #4D6733 #336767 #4D3367

split-complementary

#673333 #33674D #334D67

monochromatic

#150A0A #3E1F1F #673333 #904747 #B26363

Accessibility & contrast

On white

10.01

#673333 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#673333 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673333

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673333	#FFFFFF	#000000	##FFFFFF
##673333	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3C33

Deuteranopia (green-blind)

#4B4632

Tritanopia (blue-blind)

#702C33

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #673333;
/* rgb */ color: rgb(103, 51, 51);
/* oklch */ color: oklch(38.9% 0.075 21.1);

Tailwind

colors: {
  custom: {
    50: '#956c6a',
    500: '#673333',
    950: '#000000',
  },
}

SCSS

$custom: #673333;
$custom-light: #956c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#673333",
  "rgb": {
    "r": 103,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 33.766,
    "l": 30.196
  },
  "oklch": {
    "l": 0.38898,
    "c": 0.07471,
    "h": 21.1
  },
  "luminance": 0.0549
}

Semantic roles & 50–950 ramp

primary

#673333

secondary

#5E9898

accent

#CACA5E

background

#F9F6F6

surface

#F2EBEB

border

#CCC6C6

text

#0E0706

muted

#7E7A7A

Preview Lab

Preview with #673333

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

Preview Lab → · Contrast checker → · Palette generator →