#673D3B#673D3B

#673D3B is a dark, muted red. Relative luminance 0.065; OKLCH L 41.0% C 0.060 H 22.9°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#673D3B
RGB	rgb(103, 61, 59)
HSL	hsl(3, 27%, 32%)
HSV	hsv(3, 43%, 40%)
CMYK	cmyk(0%, 40.8%, 42.7%, 59.6%)
CIE-LAB	lab(30.73, 18.18, 9.07)
CIE-LCH	lch(30.73, 20.31, 26.52°)
OKLab	oklab(40.98% 0.0549 0.0232)
OKLCH	oklch(40.98% 0.06 22.9)
XYZ	xyz(8.0521, 6.5375, 4.9746)
Luminance	0.0654 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D3B #3B6567

analogous

#673B4F #673D3B #67533B

triadic

#673D3B #3B673D #3D3B67

tetradic

#673D3B #4F673B #3B6567 #533B67

square

#673D3B #4F673B #3B6567 #533B67

split-complementary

#673D3B #3B6753 #3B4F67

monochromatic

#190F0E #402625 #673D3B #8E5451 #AD7270

Accessibility & contrast

On white

9.10

#673D3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#673D3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D3B

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D3B	#FFFFFF	#000000	##FFFFFF
##673D3B	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46433B

Deuteranopia (green-blind)

#504C3A

Tritanopia (blue-blind)

#6F383D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d3b;
/* rgb */ color: rgb(103, 61, 59);
/* oklch */ color: oklch(41.0% 0.060 22.9);

Tailwind

colors: {
  custom: {
    50: '#947370',
    500: '#673d3b',
    950: '#000000',
  },
}

SCSS

$custom: #673d3b;
$custom-light: #947370;
$custom-dark: #000000;

JSON

{
  "hex": "#673d3b",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 59
  },
  "hsl": {
    "h": 2.727,
    "s": 27.16,
    "l": 31.765
  },
  "oklch": {
    "l": 0.40977,
    "c": 0.0596,
    "h": 22.9
  },
  "luminance": 0.06537
}

Semantic roles & 50–950 ramp

primary

#673D3B

secondary

#679597

accent

#BFC364

background

#F9F7F6

surface

#F2EDEC

border

#CCC8C7

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673D3B

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

Preview Lab → · Contrast checker → · Palette generator →