#665DD1#665DD1
#665DD1 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.8% C 0.173 H 282.6°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).
Color values
| HEX | #665DD1 |
|---|---|
| RGB | rgb(102, 93, 209) |
| HSL | hsl(245, 56%, 59%) |
| HSV | hsv(245, 56%, 82%) |
| CMYK | cmyk(51.2%, 55.5%, 0%, 18%) |
| CIE-LAB | lab(45.98, 34.62, -59.04) |
| CIE-LCH | lch(45.98, 68.44, 300.39°) |
| OKLab | oklab(54.84% 0.0377 -0.1688) |
| OKLCH | oklch(54.84% 0.173 282.6) |
| XYZ | xyz(20.8990, 15.2558, 62.1527) |
| Luminance | 0.1526 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 0.64
Slate Blue
#6A5ACD
ΔE00 1.43
Light Indigo
#6D5ACF
ΔE00 1.74
Iris
#6258C4
ΔE00 2.51
Warm Blue
#4B57DB
ΔE00 4.33
Mediumslateblue
#7B68EE
ΔE00 6.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#665DD1 #C8D15D
analogous
#5D8ED1 #665DD1 #A05DD1
triadic
#665DD1 #D1665D #5DD166
tetradic
#665DD1 #D15D8E #C8D15D #5DD1A0
square
#665DD1 #D15D8E #C8D15D #5DD1A0
split-complementary
#665DD1 #D1A05D #8ED15D
monochromatic
#2F288C #4035BC #665DD1 #938DDF #C0BCEC
Accessibility & contrast
On white
5.18
#665DD1 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.05
#665DD1 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #665DD1
5.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##665DD1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##665DD1 | 1.00 | 5.18 | 4.05 | 5.18 |
| #FFFFFF | 5.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.05 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0F71D5
Deuteranopia (green-blind)
#0069CF
Tritanopia (blue-blind)
#3B778E
Achromatopsia (no color)
#6D6D6D
Design tokens & code
CSS
--color: #665dd1; /* rgb */ color: rgb(102, 93, 209); /* oklch */ color: oklch(54.8% 0.173 282.6);
Tailwind
colors: {
custom: {
50: '#998be0',
500: '#665dd1',
950: '#000000',
},
}SCSS
$custom: #665dd1; $custom-light: #998be0; $custom-dark: #000000;
JSON
{
"hex": "#665dd1",
"rgb": {
"r": 102,
"g": 93,
"b": 209
},
"hsl": {
"h": 244.655,
"s": 55.769,
"l": 59.216
},
"oklch": {
"l": 0.5484,
"c": 0.17295,
"h": 282.6
},
"luminance": 0.15257
}Semantic roles & 50–950 ramp
primary
#665DD1
secondary
#D8DCAE
accent
#DF49D3
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0F0C15
muted
#7E7D83