#643F46#643F46
#643F46 is a dark, muted red. Relative luminance 0.067; OKLCH L 41.3% C 0.053 H 7.3°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).
Color values
| HEX | #643F46 |
|---|---|
| RGB | rgb(100, 63, 70) |
| HSL | hsl(349, 23%, 32%) |
| HSV | hsv(349, 37%, 39%) |
| CMYK | cmyk(0%, 37%, 30%, 60.8%) |
| CIE-LAB | lab(31.13, 17.23, 2.46) |
| CIE-LCH | lch(31.13, 17.41, 8.13°) |
| OKLab | oklab(41.29% 0.0522 0.0067) |
| OKLCH | oklch(41.29% 0.053 7.3) |
| XYZ | xyz(8.1387, 6.7071, 6.6591) |
| Luminance | 0.0671 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Purplish Brown
#6B4247
ΔE00 2.06
Purple Brown
#673A3F
ΔE00 2.90
Brownish Purple
#76424E
ΔE00 4.84
Wine
#722F37
ΔE00 7.84
Dirty Purple
#734A65
ΔE00 8.83
Dark Mauve
#874C62
ΔE00 9.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#643F46 #3F645D
analogous
#643F59 #643F46 #644B3F
triadic
#643F46 #46643F #3F4664
tetradic
#643F46 #59643F #3F645D #4B3F64
square
#643F46 #59643F #3F645D #4B3F64
split-complementary
#643F46 #3F644B #3F5964
monochromatic
#191011 #3E272C #643F46 #8A5760 #A8757F
Accessibility & contrast
On white
8.97
#643F46 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#643F46 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #643F46
8.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##643F46 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##643F46 | 1.00 | 8.97 | 2.34 | 8.97 |
| #FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#454546
Deuteranopia (green-blind)
#4E4C45
Tritanopia (blue-blind)
#6A3C41
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #643f46; /* rgb */ color: rgb(100, 63, 70); /* oklch */ color: oklch(41.3% 0.053 7.3);
Tailwind
colors: {
custom: {
50: '#917479',
500: '#643f46',
950: '#000000',
},
}SCSS
$custom: #643f46; $custom-light: #917479; $custom-dark: #000000;
JSON
{
"hex": "#643f46",
"rgb": {
"r": 100,
"g": 63,
"b": 70
},
"hsl": {
"h": 348.649,
"s": 22.699,
"l": 31.961
},
"oklch": {
"l": 0.41293,
"c": 0.05261,
"h": 7.3
},
"luminance": 0.06707
}Semantic roles & 50–950 ramp
primary
#643F46
secondary
#6B948C
accent
#BFAF69
background
#F9F7F7
surface
#F1EDED
border
#CBC8C8
text
#0D0809
muted
#7E7B7B