#643DA9#643DA9
#643DA9 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.165 H 295.9°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).
Color values
| HEX | #643DA9 |
|---|---|
| RGB | rgb(100, 61, 169) |
| HSL | hsl(262, 47%, 45%) |
| HSV | hsv(262, 64%, 66%) |
| CMYK | cmyk(40.8%, 63.9%, 0%, 33.7%) |
| CIE-LAB | lab(35.81, 41.25, -52.10) |
| CIE-LCH | lch(35.81, 66.46, 308.37°) |
| OKLab | oklab(46.44% 0.0722 -0.1485) |
| OKLCH | oklch(46.44% 0.165 295.9) |
| XYZ | xyz(14.0838, 8.9111, 38.5064) |
| Luminance | 0.0891 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 3.68
Bluey Purple
#6241C7
ΔE00 4.73
Ocean Blue
#4F42B5
ΔE00 4.78
Blue With A Hint Of Purple
#533CC6
ΔE00 5.36
Blurple
#5539CC
ΔE00 5.83
Blueberry
#464196
ΔE00 6.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#643DA9 #82A93D
analogous
#3D4CA9 #643DA9 #9A3DA9
triadic
#643DA9 #A9643D #3DA964
tetradic
#643DA9 #A93D4C #82A93D #3DA99A
square
#643DA9 #A93D4C #82A93D #3DA99A
split-complementary
#643DA9 #A99A3D #4CA93D
monochromatic
#2F1D4F #492D7C #643DA9 #835EC5 #A68BD5
Accessibility & contrast
On white
7.55
#643DA9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.78
#643DA9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #643DA9
7.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##643DA9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##643DA9 | 1.00 | 7.55 | 2.78 | 7.55 |
| #FFFFFF | 7.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.78 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0055AC
Deuteranopia (green-blind)
#0053A7
Tritanopia (blue-blind)
#53566D
Achromatopsia (no color)
#545454
Design tokens & code
CSS
--color: #643da9; /* rgb */ color: rgb(100, 61, 169); /* oklch */ color: oklch(46.4% 0.165 295.9);
Tailwind
colors: {
custom: {
50: '#9575c3',
500: '#643da9',
950: '#000000',
},
}SCSS
$custom: #643da9; $custom-light: #9575c3; $custom-dark: #000000;
JSON
{
"hex": "#643da9",
"rgb": {
"r": 100,
"g": 61,
"b": 169
},
"hsl": {
"h": 261.667,
"s": 46.957,
"l": 45.098
},
"oklch": {
"l": 0.46442,
"c": 0.16516,
"h": 295.9
},
"luminance": 0.08911
}Semantic roles & 50–950 ramp
primary
#643DA9
secondary
#A9C082
accent
#D751A6
background
#F9F7FC
surface
#F2EDF8
border
#CCC8D1
text
#0E0813
muted
#7E7B82