#665DCC#665DCC
#665DCC is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.5% C 0.166 H 283.0°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).
Color values
| HEX | #665DCC |
|---|---|
| RGB | rgb(102, 93, 204) |
| HSL | hsl(245, 52%, 58%) |
| HSV | hsv(245, 54%, 80%) |
| CMYK | cmyk(50%, 54.4%, 0%, 20%) |
| CIE-LAB | lab(45.65, 33.09, -56.71) |
| CIE-LCH | lch(45.65, 65.65, 300.26°) |
| OKLab | oklab(54.49% 0.0375 -0.1619) |
| OKLCH | oklch(54.49% 0.166 283) |
| XYZ | xyz(20.2896, 15.0121, 58.9435) |
| Luminance | 0.1501 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 0.98
Slate Blue
#6A5ACD
ΔE00 1.30
Light Indigo
#6D5ACF
ΔE00 1.76
Iris
#6258C4
ΔE00 2.00
Warm Blue
#4B57DB
ΔE00 4.61
Mediumslateblue
#7B68EE
ΔE00 7.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#665DCC #C3CC5D
analogous
#5D8BCC #665DCC #9D5DCC
triadic
#665DCC #CC665D #5DCC66
tetradic
#665DCC #CC5D8B #C3CC5D #5DCC9D
square
#665DCC #CC5D8B #C3CC5D #5DCC9D
split-complementary
#665DCC #CC9D5D #8BCC5D
monochromatic
#312A85 #4238B3 #665DCC #928CDB #BEBAE9
Accessibility & contrast
On white
5.25
#665DCC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.00
#665DCC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #665DCC
5.25:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##665DCC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##665DCC | 1.00 | 5.25 | 4.00 | 5.25 |
| #FFFFFF | 5.25 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.00 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.25 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1C70D0
Deuteranopia (green-blind)
#1068CA
Tritanopia (blue-blind)
#3F768B
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #665dcc; /* rgb */ color: rgb(102, 93, 204); /* oklch */ color: oklch(54.5% 0.166 283.0);
Tailwind
colors: {
custom: {
50: '#998bdc',
500: '#665dcc',
950: '#000000',
},
}SCSS
$custom: #665dcc; $custom-light: #998bdc; $custom-dark: #000000;
JSON
{
"hex": "#665dcc",
"rgb": {
"r": 102,
"g": 93,
"b": 204
},
"hsl": {
"h": 244.865,
"s": 52.113,
"l": 58.235
},
"oklch": {
"l": 0.54488,
"c": 0.16622,
"h": 283
},
"luminance": 0.15013
}Semantic roles & 50–950 ramp
primary
#665DCC
secondary
#D5D9AC
accent
#DC4CD0
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0E0C15
muted
#7E7D83