#663BA4#663BA4
#663BA4 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 46.0% C 0.162 H 298.7°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).
Color values
| HEX | #663BA4 |
|---|---|
| RGB | rgb(102, 59, 164) |
| HSL | hsl(265, 47%, 44%) |
| HSV | hsv(265, 64%, 64%) |
| CMYK | cmyk(37.8%, 64%, 0%, 35.7%) |
| CIE-LAB | lab(35.27, 41.45, -49.98) |
| CIE-LCH | lch(35.27, 64.93, 309.67°) |
| OKLab | oklab(45.99% 0.0778 -0.1422) |
| OKLCH | oklch(45.99% 0.162 298.7) |
| XYZ | xyz(13.7426, 8.6329, 36.0570) |
| Luminance | 0.0863 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 2.63
Bluey Purple
#6241C7
ΔE00 5.76
Ocean Blue
#4F42B5
ΔE00 5.80
Blue With A Hint Of Purple
#533CC6
ΔE00 6.37
Blurple
#5539CC
ΔE00 6.78
Royal Purple
#7851A9
ΔE00 6.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#663BA4 #79A43B
analogous
#3B45A4 #663BA4 #9A3BA4
triadic
#663BA4 #A4663B #3BA466
tetradic
#663BA4 #A43B45 #79A43B #3BA49A
square
#663BA4 #A43B45 #79A43B #3BA49A
split-complementary
#663BA4 #A49A3B #45A43B
monochromatic
#2E1B4A #4A2B77 #663BA4 #8459C3 #A686D3
Accessibility & contrast
On white
7.70
#663BA4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.73
#663BA4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #663BA4
7.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##663BA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##663BA4 | 1.00 | 7.70 | 2.73 | 7.70 |
| #FFFFFF | 7.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.73 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0053A7
Deuteranopia (green-blind)
#0652A2
Tritanopia (blue-blind)
#58526A
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #663ba4; /* rgb */ color: rgb(102, 59, 164); /* oklch */ color: oklch(46.0% 0.162 298.7);
Tailwind
colors: {
custom: {
50: '#9673c0',
500: '#663ba4',
950: '#000000',
},
}SCSS
$custom: #663ba4; $custom-light: #9673c0; $custom-dark: #000000;
JSON
{
"hex": "#663ba4",
"rgb": {
"r": 102,
"g": 59,
"b": 164
},
"hsl": {
"h": 264.571,
"s": 47.085,
"l": 43.725
},
"oklch": {
"l": 0.45985,
"c": 0.16209,
"h": 298.7
},
"luminance": 0.08633
}Semantic roles & 50–950 ramp
primary
#663BA4
secondary
#A3BE7D
accent
#D751A0
background
#F9F7FB
surface
#F2EDF7
border
#CCC8D0
text
#0E0812
muted
#7E7B81