#643E44#643E44
#643E44 is a dark, muted red. Relative luminance 0.066; OKLCH L 41.0% C 0.054 H 9.4°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).
Color values
| HEX | #643E44 |
|---|---|
| RGB | rgb(100, 62, 68) |
| HSL | hsl(351, 23%, 32%) |
| HSV | hsv(351, 38%, 39%) |
| CMYK | cmyk(0%, 38%, 32%, 60.8%) |
| CIE-LAB | lab(30.81, 17.54, 3.30) |
| CIE-LCH | lch(30.81, 17.85, 10.66°) |
| OKLab | oklab(41.03% 0.0532 0.0088) |
| OKLCH | oklch(41.03% 0.054 9.4) |
| XYZ | xyz(8.0218, 6.5725, 6.3138) |
| Luminance | 0.0657 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Purplish Brown
#6B4247
ΔE00 1.88
Purple Brown
#673A3F
ΔE00 2.33
Brownish Purple
#76424E
ΔE00 4.89
Wine
#722F37
ΔE00 7.35
Dirty Purple
#734A65
ΔE00 9.38
Dark Mauve
#874C62
ΔE00 10.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#643E44 #3E645E
analogous
#643E57 #643E44 #644B3E
triadic
#643E44 #44643E #3E4464
tetradic
#643E44 #57643E #3E645E #4B3E64
square
#643E44 #57643E #3E645E #4B3E64
split-complementary
#643E44 #3E644B #3E5764
monochromatic
#180F11 #3E272A #643E44 #8A555E #A9747C
Accessibility & contrast
On white
9.07
#643E44 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.31
#643E44 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #643E44
9.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##643E44 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##643E44 | 1.00 | 9.07 | 2.31 | 9.07 |
| #FFFFFF | 9.07 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.07 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#444444
Deuteranopia (green-blind)
#4D4B43
Tritanopia (blue-blind)
#6B3B40
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #643e44; /* rgb */ color: rgb(100, 62, 68); /* oklch */ color: oklch(41.0% 0.054 9.4);
Tailwind
colors: {
custom: {
50: '#917477',
500: '#643e44',
950: '#000000',
},
}SCSS
$custom: #643e44; $custom-light: #917477; $custom-dark: #000000;
JSON
{
"hex": "#643e44",
"rgb": {
"r": 100,
"g": 62,
"b": 68
},
"hsl": {
"h": 350.526,
"s": 23.457,
"l": 31.765
},
"oklch": {
"l": 0.41031,
"c": 0.0539,
"h": 9.4
},
"luminance": 0.06572
}Semantic roles & 50–950 ramp
primary
#643E44
secondary
#6A948D
accent
#C0B268
background
#F9F7F7
surface
#F1EDED
border
#CBC8C8
text
#0D0808
muted
#7E7B7B