#5B5BF0#5B5BF0
#5B5BF0 is a mid, highly saturated blue. Relative luminance 0.160; OKLCH L 56.1% C 0.218 H 276.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).
Color values
| HEX | #5B5BF0 |
|---|---|
| RGB | rgb(91, 91, 240) |
| HSL | hsl(240, 83%, 65%) |
| HSV | hsv(240, 62%, 94%) |
| CMYK | cmyk(62.1%, 62.1%, 0%, 5.9%) |
| CIE-LAB | lab(46.97, 43.64, -75.05) |
| CIE-LCH | lch(46.97, 86.81, 300.18°) |
| OKLab | oklab(56.07% 0.0256 -0.2162) |
| OKLCH | oklch(56.07% 0.218 276.8) |
| XYZ | xyz(23.7785, 15.9957, 84.2556) |
| Luminance | 0.1600 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.98
Dark Periwinkle
#665FD1
ΔE00 4.32
Light Indigo
#6D5ACF
ΔE00 5.17
Slate Blue
#6A5ACD
ΔE00 5.17
Electric Blue
#0652FF
ΔE00 5.53
Mediumslateblue
#7B68EE
ΔE00 6.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5B5BF0 #F0F05B
analogous
#5BA6F0 #5B5BF0 #A65BF0
triadic
#5B5BF0 #F05B5B #5BF05B
tetradic
#5B5BF0 #F05BA6 #F0F05B #5BF0A6
square
#5B5BF0 #F05BA6 #F0F05B #5BF0A6
split-complementary
#5B5BF0 #F0A65B #A6F05B
monochromatic
#1111BF #2323EB #5B5BF0 #9393F5 #CBCBFA
Accessibility & contrast
On white
5.00
#5B5BF0 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.20
#5B5BF0 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5B5BF0
5.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5B5BF0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5B5BF0 | 1.00 | 5.00 | 4.20 | 5.00 |
| #FFFFFF | 5.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.20 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0076F5
Deuteranopia (green-blind)
#0069ED
Tritanopia (blue-blind)
#00819D
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #5b5bf0; /* rgb */ color: rgb(91, 91, 240); /* oklch */ color: oklch(56.1% 0.218 276.8);
Tailwind
colors: {
custom: {
50: '#988af6',
500: '#5b5bf0',
950: '#000000',
},
}SCSS
$custom: #5b5bf0; $custom-light: #988af6; $custom-dark: #000000;
JSON
{
"hex": "#5b5bf0",
"rgb": {
"r": 91,
"g": 91,
"b": 240
},
"hsl": {
"h": 240,
"s": 83.24,
"l": 64.902
},
"oklch": {
"l": 0.56071,
"c": 0.2177,
"h": 276.8
},
"luminance": 0.15998
}Semantic roles & 50–950 ramp
primary
#5B5BF0
secondary
#EDEDBA
accent
#E006E0
background
#FAF8FF
surface
#F4F0FF
border
#CECBD7
text
#0F0B17
muted
#7F7C85