#663DA9#663DA9
#663DA9 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.7% C 0.165 H 297.0°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).
Color values
| HEX | #663DA9 |
|---|---|
| RGB | rgb(102, 61, 169) |
| HSL | hsl(263, 47%, 45%) |
| HSV | hsv(263, 64%, 66%) |
| CMYK | cmyk(39.6%, 63.9%, 0%, 33.7%) |
| CIE-LAB | lab(36.04, 41.69, -51.73) |
| CIE-LCH | lch(36.04, 66.44, 308.86°) |
| OKLab | oklab(46.66% 0.075 -0.1474) |
| OKLCH | oklch(46.66% 0.165 297) |
| XYZ | xyz(14.3078, 9.0266, 38.5169) |
| Luminance | 0.0903 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 3.57
Bluey Purple
#6241C7
ΔE00 4.84
Ocean Blue
#4F42B5
ΔE00 5.12
Blue With A Hint Of Purple
#533CC6
ΔE00 5.61
Blurple
#5539CC
ΔE00 6.04
Royal Purple
#7851A9
ΔE00 6.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#663DA9 #80A93D
analogous
#3D4AA9 #663DA9 #9C3DA9
triadic
#663DA9 #A9663D #3DA966
tetradic
#663DA9 #A93D4A #80A93D #3DA99C
square
#663DA9 #A93D4A #80A93D #3DA99C
split-complementary
#663DA9 #A99C3D #4AA93D
monochromatic
#301D4F #4B2D7C #663DA9 #855EC5 #A78BD5
Accessibility & contrast
On white
7.49
#663DA9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.81
#663DA9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #663DA9
7.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##663DA9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##663DA9 | 1.00 | 7.49 | 2.81 | 7.49 |
| #FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.81 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0055AC
Deuteranopia (green-blind)
#0053A7
Tritanopia (blue-blind)
#56556D
Achromatopsia (no color)
#555555
Design tokens & code
CSS
--color: #663da9; /* rgb */ color: rgb(102, 61, 169); /* oklch */ color: oklch(46.7% 0.165 297.0);
Tailwind
colors: {
custom: {
50: '#9775c3',
500: '#663da9',
950: '#000000',
},
}SCSS
$custom: #663da9; $custom-light: #9775c3; $custom-dark: #000000;
JSON
{
"hex": "#663da9",
"rgb": {
"r": 102,
"g": 61,
"b": 169
},
"hsl": {
"h": 262.778,
"s": 46.957,
"l": 45.098
},
"oklch": {
"l": 0.46655,
"c": 0.16537,
"h": 297
},
"luminance": 0.09027
}Semantic roles & 50–950 ramp
primary
#663DA9
secondary
#A8C082
accent
#D751A4
background
#F9F7FC
surface
#F2EDF8
border
#CCC8D1
text
#0E0813
muted
#7E7B82