#5B57EB#5B57EB
#5B57EB is a mid, highly saturated blue. Relative luminance 0.150; OKLCH L 55.0% C 0.216 H 277.8°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).
Color values
| HEX | #5B57EB |
|---|---|
| RGB | rgb(91, 87, 235) |
| HSL | hsl(242, 79%, 63%) |
| HSV | hsv(242, 63%, 92%) |
| CMYK | cmyk(61.3%, 63%, 0%, 7.8%) |
| CIE-LAB | lab(45.68, 44.39, -74.33) |
| CIE-LCH | lch(45.68, 86.58, 300.85°) |
| OKLab | oklab(55.01% 0.0292 -0.2141) |
| OKLCH | oklch(55.01% 0.216 277.8) |
| XYZ | xyz(22.7131, 15.0369, 80.2867) |
| Luminance | 0.1504 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.30
Dark Periwinkle
#665FD1
ΔE00 4.18
Slate Blue
#6A5ACD
ΔE00 4.55
Light Indigo
#6D5ACF
ΔE00 4.59
Electric Blue
#0652FF
ΔE00 5.32
Iris
#6258C4
ΔE00 5.36
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5B57EB #E7EB57
analogous
#579DEB #5B57EB #A557EB
triadic
#5B57EB #EB5B57 #57EB5B
tetradic
#5B57EB #EB579D #E7EB57 #57EBA5
square
#5B57EB #EB579D #E7EB57 #57EBA5
split-complementary
#5B57EB #EBA557 #9DEB57
monochromatic
#1915B2 #2620E4 #5B57EB #908EF2 #C6C4F8
Accessibility & contrast
On white
5.24
#5B57EB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.01
#5B57EB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5B57EB
5.24:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5B57EB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5B57EB | 1.00 | 5.24 | 4.01 | 5.24 |
| #FFFFFF | 5.24 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.01 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.24 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0072F0
Deuteranopia (green-blind)
#0066E8
Tritanopia (blue-blind)
#007C99
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #5b57eb; /* rgb */ color: rgb(91, 87, 235); /* oklch */ color: oklch(55.0% 0.216 277.8);
Tailwind
colors: {
custom: {
50: '#9887f2',
500: '#5b57eb',
950: '#000000',
},
}SCSS
$custom: #5b57eb; $custom-light: #9887f2; $custom-dark: #000000;
JSON
{
"hex": "#5b57eb",
"rgb": {
"r": 91,
"g": 87,
"b": 235
},
"hsl": {
"h": 241.622,
"s": 78.723,
"l": 63.137
},
"oklch": {
"l": 0.55011,
"c": 0.21608,
"h": 277.8
},
"luminance": 0.15039
}Semantic roles & 50–950 ramp
primary
#5B57EB
secondary
#E8E9B4
accent
#DB0AD5
background
#FAF8FF
surface
#F3EFFE
border
#CDCAD6
text
#0F0B17
muted
#7F7C85