#641B8D#641B8D
#641B8D is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.1% C 0.176 H 309.5°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).
Color values
| HEX | #641B8D |
|---|---|
| RGB | rgb(100, 27, 141) |
| HSL | hsl(278, 68%, 33%) |
| HSV | hsv(278, 81%, 55%) |
| CMYK | cmyk(29.1%, 80.9%, 0%, 44.7%) |
| CIE-LAB | lab(27.89, 50.38, -47.91) |
| CIE-LCH | lch(27.89, 69.53, 316.44°) |
| OKLab | oklab(40.12% 0.112 -0.136) |
| OKLCH | oklch(40.12% 0.176 309.5) |
| XYZ | xyz(10.4542, 5.4165, 25.6889) |
| Luminance | 0.0542 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 4.86
Purple (survey)
#7E1E9C
ΔE00 5.05
Indigo
#4B0082
ΔE00 5.72
Royal Purple (survey)
#4B006E
ΔE00 6.89
Purple
#800080
ΔE00 6.90
Darkish Purple
#751973
ΔE00 7.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#641B8D #448D1B
analogous
#2B1B8D #641B8D #8D1B7D
triadic
#641B8D #8D641B #1B8D64
tetradic
#641B8D #8D2B1B #448D1B #1B7D8D
square
#641B8D #8D2B1B #448D1B #1B7D8D
split-complementary
#641B8D #7D8D1B #1B8D2B
monochromatic
#1B0726 #40115A #641B8D #8825C0 #A647DC
Accessibility & contrast
On white
10.08
#641B8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.08
#641B8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #641B8D
10.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##641B8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##641B8D | 1.00 | 10.08 | 2.08 | 10.08 |
| #FFFFFF | 10.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.08 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003F90
Deuteranopia (green-blind)
#00438B
Tritanopia (blue-blind)
#5E3854
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #641b8d; /* rgb */ color: rgb(100, 27, 141); /* oklch */ color: oklch(40.1% 0.176 309.5);
Tailwind
colors: {
custom: {
50: '#9561af',
500: '#641b8d',
950: '#000000',
},
}SCSS
$custom: #641b8d; $custom-light: #9561af; $custom-dark: #000000;
JSON
{
"hex": "#641b8d",
"rgb": {
"r": 100,
"g": 27,
"b": 141
},
"hsl": {
"h": 278.421,
"s": 67.857,
"l": 32.941
},
"oklch": {
"l": 0.40119,
"c": 0.17622,
"h": 309.5
},
"luminance": 0.05416
}Semantic roles & 50–950 ramp
primary
#641B8D
secondary
#71BD46
accent
#EB3D7C
background
#F9F6FA
surface
#F2EBF5
border
#CCC6CF
text
#0E0510
muted
#7E7A7F