#631D8D#631D8D
#631D8D is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.2% C 0.174 H 308.8°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).
Color values
| HEX | #631D8D |
|---|---|
| RGB | rgb(99, 29, 141) |
| HSL | hsl(278, 66%, 33%) |
| HSV | hsv(278, 79%, 55%) |
| CMYK | cmyk(29.8%, 79.4%, 0%, 44.7%) |
| CIE-LAB | lab(27.99, 49.46, -47.75) |
| CIE-LCH | lch(27.99, 68.75, 316.01°) |
| OKLab | oklab(40.16% 0.1089 -0.1356) |
| OKLCH | oklch(40.16% 0.174 308.8) |
| XYZ | xyz(10.3917, 5.4547, 25.6996) |
| Luminance | 0.0545 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Rebeccapurple
#663399
ΔE00 4.61
Purple (survey)
#7E1E9C
ΔE00 5.15
Indigo
#4B0082
ΔE00 5.76
Royal Purple (survey)
#4B006E
ΔE00 6.96
Purple
#800080
ΔE00 7.13
Darkish Purple
#751973
ΔE00 7.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#631D8D #478D1D
analogous
#2B1D8D #631D8D #8D1D7F
triadic
#631D8D #8D631D #1D8D63
tetradic
#631D8D #8D2B1D #478D1D #1D7F8D
square
#631D8D #8D2B1D #478D1D #1D7F8D
split-complementary
#631D8D #7F8D1D #1D8D2B
monochromatic
#1C0827 #3F135A #631D8D #8727C0 #A44BDA
Accessibility & contrast
On white
10.04
#631D8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.09
#631D8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #631D8D
10.04:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##631D8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##631D8D | 1.00 | 10.04 | 2.09 | 10.04 |
| #FFFFFF | 10.04 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.09 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.04 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003F90
Deuteranopia (green-blind)
#00438B
Tritanopia (blue-blind)
#5C3955
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #631d8d; /* rgb */ color: rgb(99, 29, 141); /* oklch */ color: oklch(40.2% 0.174 308.8);
Tailwind
colors: {
custom: {
50: '#9462af',
500: '#631d8d',
950: '#000000',
},
}SCSS
$custom: #631d8d; $custom-light: #9462af; $custom-dark: #000000;
JSON
{
"hex": "#631d8d",
"rgb": {
"r": 99,
"g": 29,
"b": 141
},
"hsl": {
"h": 277.5,
"s": 65.882,
"l": 33.333
},
"oklch": {
"l": 0.4016,
"c": 0.17391,
"h": 308.8
},
"luminance": 0.05454
}Semantic roles & 50–950 ramp
primary
#631D8D
secondary
#75BC4A
accent
#E93F7F
background
#F9F6FA
surface
#F2EBF5
border
#CCC6CF
text
#0E0510
muted
#7E7A7F