#5F66EF#5F66EF
#5F66EF is a mid, highly saturated blue. Relative luminance 0.182; OKLCH L 58.1% C 0.202 H 275.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).
Color values
| HEX | #5F66EF |
|---|---|
| RGB | rgb(95, 102, 239) |
| HSL | hsl(237, 82%, 65%) |
| HSV | hsv(237, 60%, 94%) |
| CMYK | cmyk(60.3%, 57.3%, 0%, 6.3%) |
| CIE-LAB | lab(49.70, 37.38, -70.04) |
| CIE-LCH | lch(49.70, 79.39, 298.09°) |
| OKLab | oklab(58.13% 0.0208 -0.2013) |
| OKLCH | oklch(58.13% 0.202 275.9) |
| XYZ | xyz(25.0456, 18.1657, 83.8311) |
| Luminance | 0.1817 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Mediumslateblue
#7B68EE
ΔE00 4.52
Dark Periwinkle
#665FD1
ΔE00 4.90
Royal Blue
#4169E1
ΔE00 5.20
Cornflower Blue
#5170D7
ΔE00 5.72
Warm Blue
#4B57DB
ΔE00 6.11
Cornflower
#6A79F7
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5F66EF #EFE85F
analogous
#5FAEEF #5F66EF #A05FEF
triadic
#5F66EF #EF5F66 #66EF5F
tetradic
#5F66EF #EF5FAE #EFE85F #5FEFA0
square
#5F66EF #EF5FAE #EFE85F #5FEFA0
split-complementary
#5F66EF #EFA05F #AEEF5F
monochromatic
#131CC0 #2731E9 #5F66EF #979BF5 #CED0FA
Accessibility & contrast
On white
4.53
#5F66EF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.63
#5F66EF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #5F66EF
4.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5F66EF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5F66EF | 1.00 | 4.53 | 4.63 | 4.63 |
| #FFFFFF | 4.53 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#007CF4
Deuteranopia (green-blind)
#0070EC
Tritanopia (blue-blind)
#0087A1
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #5f66ef; /* rgb */ color: rgb(95, 102, 239); /* oklch */ color: oklch(58.1% 0.202 275.9);
Tailwind
colors: {
custom: {
50: '#9991f5',
500: '#5f66ef',
950: '#000000',
},
}SCSS
$custom: #5f66ef; $custom-light: #9991f5; $custom-dark: #000000;
JSON
{
"hex": "#5f66ef",
"rgb": {
"r": 95,
"g": 102,
"b": 239
},
"hsl": {
"h": 237.083,
"s": 81.818,
"l": 65.49
},
"oklch": {
"l": 0.58127,
"c": 0.20234,
"h": 275.9
},
"luminance": 0.18168
}Semantic roles & 50–950 ramp
primary
#5F66EF
secondary
#EDEBBD
accent
#D407DE
background
#FAF8FF
surface
#F4F0FE
border
#CECBD6
text
#0F0D17
muted
#7F7D85