#673540#673540

#673540 is a dark, moderate red. Relative luminance 0.058; OKLCH L 39.6% C 0.072 H 6.9°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#673540
RGB	rgb(103, 53, 64)
HSL	hsl(347, 32%, 31%)
HSV	hsv(347, 49%, 40%)
CMYK	cmyk(0%, 48.5%, 37.9%, 59.6%)
CIE-LAB	lab(28.90, 23.66, 3.23)
CIE-LCH	lch(28.90, 23.88, 7.77°)
OKLab	oklab(39.63% 0.0718 0.0087)
OKLCH	oklch(39.63% 0.072 6.9)
XYZ	xyz(7.7924, 5.8006, 5.5587)
Luminance	0.0580 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673540 #35675C

analogous

#673559 #673540 #674335

triadic

#673540 #406735 #354067

tetradic

#673540 #596735 #35675C #433567

square

#673540 #596735 #35675C #433567

split-complementary

#673540 #356743 #355967

monochromatic

#160B0E #3F2027 #673540 #8F4A59 #B06676

Accessibility & contrast

On white

9.72

#673540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#673540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673540

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673540	#FFFFFF	#000000	##FFFFFF
##673540	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3E40

Deuteranopia (green-blind)

#4A483F

Tritanopia (blue-blind)

#6F3039

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #673540;
/* rgb */ color: rgb(103, 53, 64);
/* oklch */ color: oklch(39.6% 0.072 6.9);

Tailwind

colors: {
  custom: {
    50: '#946d74',
    500: '#673540',
    950: '#000000',
  },
}

SCSS

$custom: #673540;
$custom-light: #946d74;
$custom-dark: #000000;

JSON

{
  "hex": "#673540",
  "rgb": {
    "r": 103,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 346.8,
    "s": 32.051,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39629,
    "c": 0.07232,
    "h": 6.9
  },
  "luminance": 0.058
}

Semantic roles & 50–950 ramp

primary

#673540

secondary

#60988B

accent

#C8B160

background

#F9F6F7

surface

#F2ECED

border

#CCC7C8

text

#0D0708

muted

#7E7A7B

Preview Lab

Preview with #673540

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

Preview Lab → · Contrast checker → · Palette generator →