#665DCF#665DCF
#665DCF is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.7% C 0.170 H 282.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).
Color values
| HEX | #665DCF |
|---|---|
| RGB | rgb(102, 93, 207) |
| HSL | hsl(245, 54%, 59%) |
| HSV | hsv(245, 55%, 81%) |
| CMYK | cmyk(50.7%, 55.1%, 0%, 18.8%) |
| CIE-LAB | lab(45.85, 34.01, -58.11) |
| CIE-LCH | lch(45.85, 67.33, 300.34°) |
| OKLab | oklab(54.7% 0.0376 -0.1661) |
| OKLCH | oklch(54.7% 0.17 282.8) |
| XYZ | xyz(20.6529, 15.1574, 60.8568) |
| Luminance | 0.1516 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 0.71
Slate Blue
#6A5ACD
ΔE00 1.33
Light Indigo
#6D5ACF
ΔE00 1.71
Iris
#6258C4
ΔE00 2.29
Warm Blue
#4B57DB
ΔE00 4.43
Mediumslateblue
#7B68EE
ΔE00 6.69
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#665DCF #C6CF5D
analogous
#5D8DCF #665DCF #9F5DCF
triadic
#665DCF #CF665D #5DCF66
tetradic
#665DCF #CF5D8D #C6CF5D #5DCF9F
square
#665DCF #CF5D8D #C6CF5D #5DCF9F
split-complementary
#665DCF #CF9F5D #8DCF5D
monochromatic
#302989 #4137B8 #665DCF #938CDD #BFBBEB
Accessibility & contrast
On white
5.21
#665DCF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.03
#665DCF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #665DCF
5.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##665DCF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##665DCF | 1.00 | 5.21 | 4.03 | 5.21 |
| #FFFFFF | 5.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.03 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1570D3
Deuteranopia (green-blind)
#0369CD
Tritanopia (blue-blind)
#3D778D
Achromatopsia (no color)
#6D6D6D
Design tokens & code
CSS
--color: #665dcf; /* rgb */ color: rgb(102, 93, 207); /* oklch */ color: oklch(54.7% 0.170 282.8);
Tailwind
colors: {
custom: {
50: '#998bde',
500: '#665dcf',
950: '#000000',
},
}SCSS
$custom: #665dcf; $custom-light: #998bde; $custom-dark: #000000;
JSON
{
"hex": "#665dcf",
"rgb": {
"r": 102,
"g": 93,
"b": 207
},
"hsl": {
"h": 244.737,
"s": 54.286,
"l": 58.824
},
"oklch": {
"l": 0.54698,
"c": 0.17027,
"h": 282.8
},
"luminance": 0.15158
}Semantic roles & 50–950 ramp
primary
#665DCF
secondary
#D7DAAD
accent
#DE4AD2
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0F0C15
muted
#7E7D83