#673D3F#673D3F

#673D3F is a dark, muted red. Relative luminance 0.066; OKLCH L 41.1% C 0.059 H 16.9°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#673D3F
RGB	rgb(103, 61, 63)
HSL	hsl(357, 26%, 32%)
HSV	hsv(357, 41%, 40%)
CMYK	cmyk(0%, 40.8%, 38.8%, 59.6%)
CIE-LAB	lab(30.83, 18.71, 6.63)
CIE-LCH	lch(30.83, 19.85, 19.50°)
OKLab	oklab(41.09% 0.0567 0.0172)
OKLCH	oklch(41.09% 0.059 16.9)
XYZ	xyz(8.1598, 6.5806, 5.5421)
Luminance	0.0658 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D3F #3D6765

analogous

#673D54 #673D3F #67503D

triadic

#673D3F #3F673D #3D3F67

tetradic

#673D3F #54673D #3D6765 #503D67

square

#673D3F #54673D #3D6765 #503D67

split-complementary

#673D3F #3D6750 #3D5467

monochromatic

#1A0F10 #412627 #673D3F #8D5457 #AC7375

Accessibility & contrast

On white

9.07

#673D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#673D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D3F

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D3F	#FFFFFF	#000000	##FFFFFF
##673D3F	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45443F

Deuteranopia (green-blind)

#4F4C3E

Tritanopia (blue-blind)

#6F383E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #673d3f;
/* rgb */ color: rgb(103, 61, 63);
/* oklch */ color: oklch(41.1% 0.059 16.9);

Tailwind

colors: {
  custom: {
    50: '#947374',
    500: '#673d3f',
    950: '#000000',
  },
}

SCSS

$custom: #673d3f;
$custom-light: #947374;
$custom-dark: #000000;

JSON

{
  "hex": "#673d3f",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 357.143,
    "s": 25.61,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41089,
    "c": 0.05925,
    "h": 16.9
  },
  "luminance": 0.0658
}

Semantic roles & 50–950 ramp

primary

#673D3F

secondary

#699795

accent

#C2BE66

background

#F9F7F7

surface

#F2EDED

border

#CCC8C8

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #673D3F

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

Preview Lab → · Contrast checker → · Palette generator →