#644ECC#644ECC
#644ECC is a mid, vivid violet. Relative luminance 0.125; OKLCH L 51.8% C 0.186 H 285.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #644ECC |
|---|---|
| RGB | rgb(100, 78, 204) |
| HSL | hsl(250, 55%, 55%) |
| HSV | hsv(250, 62%, 80%) |
| CMYK | cmyk(51%, 61.8%, 0%, 20%) |
| CIE-LAB | lab(42.03, 41.60, -62.58) |
| CIE-LCH | lch(42.03, 75.15, 303.62°) |
| OKLab | oklab(51.77% 0.0511 -0.1793) |
| OKLCH | oklch(51.77% 0.186 285.9) |
| XYZ | xyz(18.8758, 12.5168, 58.5364) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Iris
#6258C4
ΔE00 3.25
Bluey Purple
#6241C7
ΔE00 3.51
Slate Blue
#6A5ACD
ΔE00 3.56
Light Indigo
#6D5ACF
ΔE00 3.72
Purpleish Blue
#6140EF
ΔE00 5.15
Dark Periwinkle
#665FD1
ΔE00 5.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#644ECC #B6CC4E
analogous
#4E77CC #644ECC #A34ECC
triadic
#644ECC #CC644E #4ECC64
tetradic
#644ECC #CC4E77 #B6CC4E #4ECCA3
square
#644ECC #CC4E77 #B6CC4E #4ECCA3
split-complementary
#644ECC #CCA34E #77CC4E
monochromatic
#33247C #4731AB #644ECC #8E7EDA #B7ADE7
Accessibility & contrast
On white
5.99
#644ECC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#644ECC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #644ECC
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##644ECC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##644ECC | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0067D0
Deuteranopia (green-blind)
#005FC9
Tritanopia (blue-blind)
#3D6C86
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #644ecc; /* rgb */ color: rgb(100, 78, 204); /* oklch */ color: oklch(51.8% 0.186 285.9);
Tailwind
colors: {
custom: {
50: '#9881dc',
500: '#644ecc',
950: '#000000',
},
}SCSS
$custom: #644ecc; $custom-light: #9881dc; $custom-dark: #000000;
JSON
{
"hex": "#644ecc",
"rgb": {
"r": 100,
"g": 78,
"b": 204
},
"hsl": {
"h": 250.476,
"s": 55.263,
"l": 55.294
},
"oklch": {
"l": 0.51774,
"c": 0.18646,
"h": 285.9
},
"luminance": 0.12518
}Semantic roles & 50–950 ramp
primary
#644ECC
secondary
#CCD5A1
accent
#DF49C5
background
#F9F7FD
surface
#F2EEFB
border
#CCC9D4
text
#0F0A15
muted
#7E7C83