#643DB0#643DB0
#643DB0 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.0% C 0.174 H 294.3°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).
Color values
| HEX | #643DB0 |
|---|---|
| RGB | rgb(100, 61, 176) |
| HSL | hsl(260, 49%, 46%) |
| HSV | hsv(260, 65%, 69%) |
| CMYK | cmyk(43.2%, 65.3%, 0%, 31%) |
| CIE-LAB | lab(36.33, 43.18, -55.43) |
| CIE-LCH | lch(36.33, 70.27, 307.92°) |
| OKLab | oklab(46.98% 0.0716 -0.1583) |
| OKLCH | oklch(46.98% 0.174 294.3) |
| XYZ | xyz(14.7586, 9.1810, 42.0604) |
| Luminance | 0.0918 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Bluey Purple
#6241C7
ΔE00 3.65
Ocean Blue
#4F42B5
ΔE00 4.24
Blue With A Hint Of Purple
#533CC6
ΔE00 4.38
Rebeccapurple
#663399
ΔE00 4.58
Blurple
#5539CC
ΔE00 4.80
Purple Blue
#5D21D0
ΔE00 6.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#643DB0 #89B03D
analogous
#3D50B0 #643DB0 #9E3DB0
triadic
#643DB0 #B0643D #3DB064
tetradic
#643DB0 #B03D50 #89B03D #3DB09E
square
#643DB0 #B03D50 #89B03D #3DB09E
split-complementary
#643DB0 #B09E3D #50B03D
monochromatic
#301D55 #4A2D83 #643DB0 #8562C8 #A88FD8
Accessibility & contrast
On white
7.40
#643DB0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.84
#643DB0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #643DB0
7.40:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##643DB0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##643DB0 | 1.00 | 7.40 | 2.84 | 7.40 |
| #FFFFFF | 7.40 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.84 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.40 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057B4
Deuteranopia (green-blind)
#0054AE
Tritanopia (blue-blind)
#4F5871
Achromatopsia (no color)
#555555
Design tokens & code
CSS
--color: #643db0; /* rgb */ color: rgb(100, 61, 176); /* oklch */ color: oklch(47.0% 0.174 294.3);
Tailwind
colors: {
custom: {
50: '#9675c8',
500: '#643db0',
950: '#000000',
},
}SCSS
$custom: #643db0; $custom-light: #9675c8; $custom-dark: #000000;
JSON
{
"hex": "#643db0",
"rgb": {
"r": 100,
"g": 61,
"b": 176
},
"hsl": {
"h": 260.348,
"s": 48.523,
"l": 46.471
},
"oklch": {
"l": 0.46981,
"c": 0.17374,
"h": 294.3
},
"luminance": 0.09181
}Semantic roles & 50–950 ramp
primary
#643DB0
secondary
#AEC386
accent
#D850AA
background
#F9F7FC
surface
#F2EDF8
border
#CCC8D1
text
#0E0813
muted
#7E7B82