#673D31#673D31

#673D31 is a dark, moderate red. Relative luminance 0.064; OKLCH L 40.7% C 0.063 H 36.7°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#673D31
RGB	rgb(103, 61, 49)
HSL	hsl(13, 36%, 30%)
HSV	hsv(13, 52%, 40%)
CMYK	cmyk(0%, 40.8%, 52.4%, 59.6%)
CIE-LAB	lab(30.50, 16.99, 15.18)
CIE-LCH	lch(30.50, 22.78, 41.79°)
OKLab	oklab(40.73% 0.0503 0.0376)
OKLCH	oklch(40.73% 0.063 36.7)
XYZ	xyz(7.8171, 6.4435, 3.7372)
Luminance	0.0644 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D31 #315B67

analogous

#673140 #673D31 #675831

triadic

#673D31 #31673D #3D3167

tetradic

#673D31 #406731 #315B67 #583167

square

#673D31 #406731 #315B67 #583167

split-complementary

#673D31 #316758 #314067

monochromatic

#150C0A #3E241D #673D31 #905645 #B3725F

Accessibility & contrast

On white

9.18

#673D31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#673D31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D31

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D31	#FFFFFF	#000000	##FFFFFF
##673D31	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474230

Deuteranopia (green-blind)

#514B31

Tritanopia (blue-blind)

#70363A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d31;
/* rgb */ color: rgb(103, 61, 49);
/* oklch */ color: oklch(40.7% 0.063 36.7);

Tailwind

colors: {
  custom: {
    50: '#957369',
    500: '#673d31',
    950: '#000000',
  },
}

SCSS

$custom: #673d31;
$custom-light: #957369;
$custom-dark: #000000;

JSON

{
  "hex": "#673d31",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 49
  },
  "hsl": {
    "h": 13.333,
    "s": 35.526,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40731,
    "c": 0.06281,
    "h": 36.7
  },
  "luminance": 0.06443
}

Semantic roles & 50–950 ramp

primary

#673D31

secondary

#5C8B98

accent

#B3CC5C

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #673D31

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

Preview Lab → · Contrast checker → · Palette generator →