#645AF0#645AF0
#645AF0 is a mid, highly saturated blue. Relative luminance 0.163; OKLCH L 56.5% C 0.217 H 279.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).
Color values
| HEX | #645AF0 |
|---|---|
| RGB | rgb(100, 90, 240) |
| HSL | hsl(244, 83%, 65%) |
| HSV | hsv(244, 63%, 94%) |
| CMYK | cmyk(58.3%, 62.5%, 0%, 5.9%) |
| CIE-LAB | lab(47.38, 45.60, -74.35) |
| CIE-LCH | lch(47.38, 87.22, 301.52°) |
| OKLab | oklab(56.53% 0.0372 -0.2139) |
| OKLCH | oklch(56.53% 0.217 279.9) |
| XYZ | xyz(24.6349, 16.3112, 84.2714) |
| Luminance | 0.1631 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 4.28
Light Indigo
#6D5ACF
ΔE00 4.66
Slate Blue
#6A5ACD
ΔE00 4.82
Warm Blue
#4B57DB
ΔE00 4.86
Mediumslateblue
#7B68EE
ΔE00 5.33
Purpley
#8756E4
ΔE00 6.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#645AF0 #E6F05A
analogous
#5A9BF0 #645AF0 #AF5AF0
triadic
#645AF0 #F0645A #5AF064
tetradic
#645AF0 #F05A9B #E6F05A #5AF0AF
square
#645AF0 #F05A9B #E6F05A #5AF0AF
split-complementary
#645AF0 #F0AF5A #9BF05A
monochromatic
#1D11BE #2F22EB #645AF0 #9992F5 #CDCAFA
Accessibility & contrast
On white
4.93
#645AF0 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.26
#645AF0 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #645AF0
4.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##645AF0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##645AF0 | 1.00 | 4.93 | 4.26 | 4.93 |
| #FFFFFF | 4.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.26 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0076F5
Deuteranopia (green-blind)
#006BED
Tritanopia (blue-blind)
#007F9D
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #645af0; /* rgb */ color: rgb(100, 90, 240); /* oklch */ color: oklch(56.5% 0.217 279.9);
Tailwind
colors: {
custom: {
50: '#9d89f6',
500: '#645af0',
950: '#000000',
},
}SCSS
$custom: #645af0; $custom-light: #9d89f6; $custom-dark: #000000;
JSON
{
"hex": "#645af0",
"rgb": {
"r": 100,
"g": 90,
"b": 240
},
"hsl": {
"h": 244,
"s": 83.333,
"l": 64.706
},
"oklch": {
"l": 0.56534,
"c": 0.21709,
"h": 279.9
},
"luminance": 0.16313
}Semantic roles & 50–950 ramp
primary
#645AF0
secondary
#E9EDB9
accent
#E006D1
background
#FAF8FF
surface
#F4F0FF
border
#CECBD7
text
#100B17
muted
#7F7C85