#663CC3#663CC3
#663CC3 is a mid, vivid violet. Relative luminance 0.100; OKLCH L 48.6% C 0.198 H 291.6°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).
Color values
| HEX | #663CC3 |
|---|---|
| RGB | rgb(102, 60, 195) |
| HSL | hsl(259, 53%, 50%) |
| HSV | hsv(259, 69%, 76%) |
| CMYK | cmyk(47.7%, 69.2%, 0%, 23.5%) |
| CIE-LAB | lab(37.84, 49.35, -64.17) |
| CIE-LCH | lch(37.84, 80.95, 307.56°) |
| OKLab | oklab(48.58% 0.0727 -0.1839) |
| OKLCH | oklch(48.58% 0.198 291.6) |
| XYZ | xyz(16.9429, 9.9960, 52.6559) |
| Luminance | 0.1000 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Bluey Purple
#6241C7
ΔE00 1.53
Blurple
#5539CC
ΔE00 2.91
Blue With A Hint Of Purple
#533CC6
ΔE00 3.00
Burple
#6832E3
ΔE00 4.25
Ocean Blue
#4F42B5
ΔE00 4.57
Purpley Blue
#5F34E7
ΔE00 4.70
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#663CC3 #99C33C
analogous
#3C55C3 #663CC3 #AA3CC3
triadic
#663CC3 #C3663C #3CC366
tetradic
#663CC3 #C33C55 #99C33C #3CC3AA
square
#663CC3 #C33C55 #99C33C #3CC3AA
split-complementary
#663CC3 #C3AA3C #55C33C
monochromatic
#351F65 #4E2E94 #663CC3 #8B6BD1 #AF9AE0
Accessibility & contrast
On white
7.00
#663CC3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
3.00
#663CC3 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #663CC3
7.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##663CC3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##663CC3 | 1.00 | 7.00 | 3.00 | 7.00 |
| #FFFFFF | 7.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.00 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005BC7
Deuteranopia (green-blind)
#0056C0
Tritanopia (blue-blind)
#495E7B
Achromatopsia (no color)
#595959
Design tokens & code
CSS
--color: #663cc3; /* rgb */ color: rgb(102, 60, 195); /* oklch */ color: oklch(48.6% 0.198 291.6);
Tailwind
colors: {
custom: {
50: '#9a75d6',
500: '#663cc3',
950: '#000000',
},
}SCSS
$custom: #663cc3; $custom-light: #9a75d6; $custom-dark: #000000;
JSON
{
"hex": "#663cc3",
"rgb": {
"r": 102,
"g": 60,
"b": 195
},
"hsl": {
"h": 258.667,
"s": 52.941,
"l": 50
},
"oklch": {
"l": 0.48575,
"c": 0.19776,
"h": 291.6
},
"luminance": 0.09997
}Semantic roles & 50–950 ramp
primary
#663CC3
secondary
#B9CC8F
accent
#DC4BAF
background
#FAF7FD
surface
#F3EDFA
border
#CDC8D3
text
#0F0814
muted
#7F7B83