#663AA4#663AA4
#663AA4 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.8% C 0.163 H 298.9°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).
Color values
| HEX | #663AA4 |
|---|---|
| RGB | rgb(102, 58, 164) |
| HSL | hsl(265, 48%, 44%) |
| HSV | hsv(265, 65%, 64%) |
| CMYK | cmyk(37.8%, 64.6%, 0%, 35.7%) |
| CIE-LAB | lab(35.07, 42.00, -50.30) |
| CIE-LCH | lch(35.07, 65.53, 309.86°) |
| OKLab | oklab(45.84% 0.0789 -0.1432) |
| OKLCH | oklch(45.84% 0.163 298.9) |
| XYZ | xyz(13.6917, 8.5311, 36.0401) |
| Luminance | 0.0853 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 2.47
Bluey Purple
#6241C7
ΔE00 5.83
Ocean Blue
#4F42B5
ΔE00 5.89
Blue With A Hint Of Purple
#533CC6
ΔE00 6.38
Blurple
#5539CC
ΔE00 6.77
Purple (survey)
#7E1E9C
ΔE00 6.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#663AA4 #78A43A
analogous
#3A43A4 #663AA4 #9B3AA4
triadic
#663AA4 #A4663A #3AA466
tetradic
#663AA4 #A43A43 #78A43A #3AA49B
square
#663AA4 #A43A43 #78A43A #3AA49B
split-complementary
#663AA4 #A49B3A #43A43A
monochromatic
#2E1A4A #4A2A77 #663AA4 #8457C4 #A585D4
Accessibility & contrast
On white
7.76
#663AA4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.71
#663AA4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #663AA4
7.76:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##663AA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##663AA4 | 1.00 | 7.76 | 2.71 | 7.76 |
| #FFFFFF | 7.76 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.71 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.76 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052A7
Deuteranopia (green-blind)
#0251A2
Tritanopia (blue-blind)
#58526A
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #663aa4; /* rgb */ color: rgb(102, 58, 164); /* oklch */ color: oklch(45.8% 0.163 298.9);
Tailwind
colors: {
custom: {
50: '#9673c0',
500: '#663aa4',
950: '#000000',
},
}SCSS
$custom: #663aa4; $custom-light: #9673c0; $custom-dark: #000000;
JSON
{
"hex": "#663aa4",
"rgb": {
"r": 102,
"g": 58,
"b": 164
},
"hsl": {
"h": 264.906,
"s": 47.748,
"l": 43.529
},
"oklch": {
"l": 0.45839,
"c": 0.16348,
"h": 298.9
},
"luminance": 0.08531
}Semantic roles & 50–950 ramp
primary
#663AA4
secondary
#A2BE7C
accent
#D7509F
background
#F9F7FB
surface
#F2EDF7
border
#CCC8D0
text
#0E0812
muted
#7E7B81