#645CD1#645CD1
#645CD1 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.5% C 0.175 H 282.0°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #645CD1 |
|---|---|
| RGB | rgb(100, 92, 209) |
| HSL | hsl(244, 56%, 59%) |
| HSV | hsv(244, 56%, 82%) |
| CMYK | cmyk(52.2%, 56%, 0%, 18%) |
| CIE-LAB | lab(45.59, 34.82, -59.69) |
| CIE-LCH | lch(45.59, 69.10, 300.26°) |
| OKLab | oklab(54.51% 0.0363 -0.1708) |
| OKLCH | oklch(54.51% 0.175 282) |
| XYZ | xyz(20.5878, 14.9659, 62.1131) |
| Luminance | 0.1497 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 0.96
Slate Blue
#6A5ACD
ΔE00 1.49
Light Indigo
#6D5ACF
ΔE00 1.89
Iris
#6258C4
ΔE00 2.29
Warm Blue
#4B57DB
ΔE00 3.94
Mediumslateblue
#7B68EE
ΔE00 6.84
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#645CD1 #C9D15C
analogous
#5C8FD1 #645CD1 #9F5CD1
triadic
#645CD1 #D1645C #5CD164
tetradic
#645CD1 #D15C8F #C9D15C #5CD19F
square
#645CD1 #D15C8F #C9D15C #5CD19F
split-complementary
#645CD1 #D19F5C #8FD15C
monochromatic
#2E278B #3E35BB #645CD1 #918CDE #BFBBEC
Accessibility & contrast
On white
5.26
#645CD1 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.99
#645CD1 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #645CD1
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##645CD1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##645CD1 | 1.00 | 5.26 | 3.99 | 5.26 |
| #FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0570D5
Deuteranopia (green-blind)
#0068CF
Tritanopia (blue-blind)
#37778D
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #645cd1; /* rgb */ color: rgb(100, 92, 209); /* oklch */ color: oklch(54.5% 0.175 282.0);
Tailwind
colors: {
custom: {
50: '#988ae0',
500: '#645cd1',
950: '#000000',
},
}SCSS
$custom: #645cd1; $custom-light: #988ae0; $custom-dark: #000000;
JSON
{
"hex": "#645cd1",
"rgb": {
"r": 100,
"g": 92,
"b": 209
},
"hsl": {
"h": 244.103,
"s": 55.981,
"l": 59.02
},
"oklch": {
"l": 0.54507,
"c": 0.17457,
"h": 282
},
"luminance": 0.14967
}Semantic roles & 50–950 ramp
primary
#645CD1
secondary
#D8DBAD
accent
#DF49D5
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0E0C15
muted
#7E7D83