#644BB1#644BB1
#644BB1 is a mid, vivid violet. Relative luminance 0.109; OKLCH L 49.3% C 0.155 H 290.9°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).
Color values
| HEX | #644BB1 |
|---|---|
| RGB | rgb(100, 75, 177) |
| HSL | hsl(255, 40%, 49%) |
| HSV | hsv(255, 58%, 69%) |
| CMYK | cmyk(43.5%, 57.6%, 0%, 30.6%) |
| CIE-LAB | lab(39.44, 35.42, -51.00) |
| CIE-LCH | lch(39.44, 62.09, 304.78°) |
| OKLab | oklab(49.27% 0.0554 -0.1453) |
| OKLCH | oklch(49.27% 0.155 290.9) |
| XYZ | xyz(15.7052, 10.9153, 42.8658) |
| Luminance | 0.1092 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Bluey Purple
#6241C7
ΔE00 4.26
Ocean Blue
#4F42B5
ΔE00 4.38
Iris
#6258C4
ΔE00 5.00
Royal Purple
#7851A9
ΔE00 5.12
Blue With A Hint Of Purple
#533CC6
ΔE00 5.69
Slate Blue
#6A5ACD
ΔE00 6.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#644BB1 #98B14B
analogous
#4B65B1 #644BB1 #974BB1
triadic
#644BB1 #B1644B #4BB164
tetradic
#644BB1 #B14B65 #98B14B #4BB197
square
#644BB1 #B14B65 #98B14B #4BB197
split-complementary
#644BB1 #B1974B #65B14B
monochromatic
#33275B #4C3986 #644BB1 #8875C4 #ADA0D7
Accessibility & contrast
On white
6.60
#644BB1 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.18
#644BB1 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #644BB1
6.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##644BB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##644BB1 | 1.00 | 6.60 | 3.18 | 6.60 |
| #FFFFFF | 6.60 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.18 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.60 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0B5FB4
Deuteranopia (green-blind)
#145BAF
Tritanopia (blue-blind)
#4E6177
Achromatopsia (no color)
#5D5D5D
Design tokens & code
CSS
--color: #644bb1; /* rgb */ color: rgb(100, 75, 177); /* oklch */ color: oklch(49.3% 0.155 290.9);
Tailwind
colors: {
custom: {
50: '#957ec9',
500: '#644bb1',
950: '#000000',
},
}SCSS
$custom: #644bb1; $custom-light: #957ec9; $custom-dark: #000000;
JSON
{
"hex": "#644bb1",
"rgb": {
"r": 100,
"g": 75,
"b": 177
},
"hsl": {
"h": 254.706,
"s": 40.476,
"l": 49.412
},
"oklch": {
"l": 0.4927,
"c": 0.15548,
"h": 290.9
},
"luminance": 0.10916
}Semantic roles & 50–950 ramp
primary
#644BB1
secondary
#B8C394
accent
#D057B3
background
#F9F7FC
surface
#F2EEF8
border
#CCC9D1
text
#0E0A13
muted
#7E7C82