#5666CA#5666CA
#5666CA is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.9% C 0.155 H 273.4°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).
Color values
| HEX | #5666CA |
|---|---|
| RGB | rgb(86, 102, 202) |
| HSL | hsl(232, 52%, 56%) |
| HSV | hsv(232, 57%, 79%) |
| CMYK | cmyk(57.4%, 49.5%, 0%, 20.8%) |
| CIE-LAB | lab(46.64, 23.63, -54.03) |
| CIE-LCH | lch(46.64, 58.97, 293.62°) |
| OKLab | oklab(54.9% 0.0092 -0.1544) |
| OKLCH | oklch(54.9% 0.155 273.4) |
| XYZ | xyz(19.2463, 15.7440, 57.8904) |
| Luminance | 0.1575 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 4.08
Cornflower Blue
#5170D7
ΔE00 4.21
Dark Periwinkle
#665FD1
ΔE00 4.36
Warm Blue
#4B57DB
ΔE00 5.30
Iris
#6258C4
ΔE00 5.76
Slate Blue
#6A5ACD
ΔE00 6.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5666CA #CABA56
analogous
#56A0CA #5666CA #8056CA
triadic
#5666CA #CA5666 #66CA56
tetradic
#5666CA #CA56A0 #CABA56 #56CA80
square
#5666CA #CA56A0 #CABA56 #56CA80
split-complementary
#5666CA #CA8056 #A0CA56
monochromatic
#28337E #3646AD #5666CA #8590D9 #B3BAE7
Accessibility & contrast
On white
5.06
#5666CA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.15
#5666CA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5666CA
5.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5666CA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5666CA | 1.00 | 5.06 | 4.15 | 5.06 |
| #FFFFFF | 5.06 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.15 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.06 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3374CE
Deuteranopia (green-blind)
#1F6AC8
Tritanopia (blue-blind)
#037D8E
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #5666ca; /* rgb */ color: rgb(86, 102, 202); /* oklch */ color: oklch(54.9% 0.155 273.4);
Tailwind
colors: {
custom: {
50: '#8f91db',
500: '#5666ca',
950: '#000000',
},
}SCSS
$custom: #5666ca; $custom-light: #8f91db; $custom-dark: #000000;
JSON
{
"hex": "#5666ca",
"rgb": {
"r": 86,
"g": 102,
"b": 202
},
"hsl": {
"h": 231.724,
"s": 52.252,
"l": 56.471
},
"oklch": {
"l": 0.54895,
"c": 0.15467,
"h": 273.4
},
"luminance": 0.15745
}Semantic roles & 50–950 ramp
primary
#5666CA
secondary
#D6CFA6
accent
#C84CDC
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0D0C15
muted
#7E7D83