#6666E7#6666E7
#6666E7 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 58.0% C 0.190 H 278.7°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).
Color values
| HEX | #6666E7 |
|---|---|
| RGB | rgb(102, 102, 231) |
| HSL | hsl(240, 73%, 65%) |
| HSV | hsv(240, 56%, 91%) |
| CMYK | cmyk(55.8%, 55.8%, 0%, 9.4%) |
| CIE-LAB | lab(49.61, 36.05, -65.66) |
| CIE-LCH | lch(49.61, 74.91, 298.77°) |
| OKLab | oklab(58.01% 0.0287 -0.1882) |
| OKLCH | oklch(58.01% 0.19 278.7) |
| XYZ | xyz(24.6501, 18.0954, 77.7796) |
| Luminance | 0.1810 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Mediumslateblue
#7B68EE
ΔE00 3.76
Dark Periwinkle
#665FD1
ΔE00 3.90
Light Indigo
#6D5ACF
ΔE00 5.46
Slate Blue
#6A5ACD
ΔE00 5.52
Royal Blue
#4169E1
ΔE00 5.89
Cornflower Blue
#5170D7
ΔE00 6.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6666E7 #E7E766
analogous
#66A6E7 #6666E7 #A666E7
triadic
#6666E7 #E76666 #66E766
tetradic
#6666E7 #E766A6 #E7E766 #66E7A6
square
#6666E7 #E766A6 #E7E766 #66E7A6
split-complementary
#6666E7 #E7A666 #A6E766
monochromatic
#1D1DB6 #3131DF #6666E7 #9B9BEF #D0D0F8
Accessibility & contrast
On white
4.55
#6666E7 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.62
#6666E7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #6666E7
4.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6666E7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##6666E7 | 1.00 | 4.55 | 4.62 | 4.62 |
| #FFFFFF | 4.55 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#007BEB
Deuteranopia (green-blind)
#0071E4
Tritanopia (blue-blind)
#1F849D
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #6666e7; /* rgb */ color: rgb(102, 102, 231); /* oklch */ color: oklch(58.0% 0.190 278.7);
Tailwind
colors: {
custom: {
50: '#9c91ef',
500: '#6666e7',
950: '#000000',
},
}SCSS
$custom: #6666e7; $custom-light: #9c91ef; $custom-dark: #000000;
JSON
{
"hex": "#6666e7",
"rgb": {
"r": 102,
"g": 102,
"b": 231
},
"hsl": {
"h": 240,
"s": 72.881,
"l": 65.294
},
"oklch": {
"l": 0.58009,
"c": 0.19039,
"h": 278.7
},
"luminance": 0.18097
}Semantic roles & 50–950 ramp
primary
#6666E7
secondary
#EAEABF
accent
#D511D5
background
#FAF8FE
surface
#F4F0FD
border
#CECBD5
text
#0F0D17
muted
#7F7D85