#665BD2#665BD2
#665BD2 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.6% C 0.177 H 283.0°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #665BD2 |
|---|---|
| RGB | rgb(102, 91, 210) |
| HSL | hsl(246, 57%, 59%) |
| HSV | hsv(246, 57%, 82%) |
| CMYK | cmyk(51.4%, 56.7%, 0%, 17.6%) |
| CIE-LAB | lab(45.58, 36.13, -60.27) |
| CIE-LCH | lch(45.58, 70.27, 300.94°) |
| OKLab | oklab(54.56% 0.0398 -0.1724) |
| OKLCH | oklch(54.56% 0.177 283) |
| XYZ | xyz(20.8499, 14.9590, 62.7490) |
| Luminance | 0.1496 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Slate Blue
#6A5ACD
ΔE00 1.14
Dark Periwinkle
#665FD1
ΔE00 1.27
Light Indigo
#6D5ACF
ΔE00 1.45
Iris
#6258C4
ΔE00 2.32
Warm Blue
#4B57DB
ΔE00 4.17
Purpley
#8756E4
ΔE00 6.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#665BD2 #C7D25B
analogous
#5B8CD2 #665BD2 #A25BD2
triadic
#665BD2 #D2665B #5BD266
tetradic
#665BD2 #D25B8C #C7D25B #5BD2A2
square
#665BD2 #D25B8C #C7D25B #5BD2A2
split-complementary
#665BD2 #D2A25B #8CD25B
monochromatic
#30268C #4034BC #665BD2 #938BDF #C0BBEC
Accessibility & contrast
On white
5.26
#665BD2 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.99
#665BD2 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #665BD2
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##665BD2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##665BD2 | 1.00 | 5.26 | 3.99 | 5.26 |
| #FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0070D6
Deuteranopia (green-blind)
#0068CF
Tritanopia (blue-blind)
#3B768E
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #665bd2; /* rgb */ color: rgb(102, 91, 210); /* oklch */ color: oklch(54.6% 0.177 283.0);
Tailwind
colors: {
custom: {
50: '#9a8ae1',
500: '#665bd2',
950: '#000000',
},
}SCSS
$custom: #665bd2; $custom-light: #9a8ae1; $custom-dark: #000000;
JSON
{
"hex": "#665bd2",
"rgb": {
"r": 102,
"g": 91,
"b": 210
},
"hsl": {
"h": 245.546,
"s": 56.938,
"l": 59.02
},
"oklch": {
"l": 0.54562,
"c": 0.17695,
"h": 283
},
"luminance": 0.1496
}Semantic roles & 50–950 ramp
primary
#665BD2
secondary
#D7DCAD
accent
#E048D2
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0F0B15
muted
#7E7C83