#3573EA#3573EA
#3573EA is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.2% C 0.191 H 261.8°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).
Color values
| HEX | #3573EA |
|---|---|
| RGB | rgb(53, 115, 234) |
| HSL | hsl(219, 81%, 56%) |
| HSV | hsv(219, 77%, 92%) |
| CMYK | cmyk(77.4%, 50.9%, 0%, 8.2%) |
| CIE-LAB | lab(50.64, 21.83, -65.81) |
| CIE-LCH | lch(50.64, 69.33, 288.35°) |
| OKLab | oklab(58.18% -0.0274 -0.1895) |
| OKLCH | oklch(58.18% 0.191 261.8) |
| XYZ | xyz(22.4449, 18.9562, 80.3019) |
| Luminance | 0.1896 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 2.09
Cerulean Blue
#056EEE
ΔE00 2.34
Clear Blue
#247AFD
ΔE00 3.27
Lightish Blue
#3D7AFD
ΔE00 3.49
Cornflower Blue
#5170D7
ΔE00 3.74
Royal Blue
#4169E1
ΔE00 4.10
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3573EA #EAAC35
analogous
#35CDEA #3573EA #5235EA
triadic
#3573EA #EA3573 #73EA35
tetradic
#3573EA #EA35CD #EAAC35 #35EA52
square
#3573EA #EA35CD #EAAC35 #35EA52
split-complementary
#3573EA #EA5235 #CDEA35
monochromatic
#103D95 #1554CD #3573EA #6C99F0 #A4C0F6
Accessibility & contrast
On white
4.38
#3573EA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.79
#3573EA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3573EA
4.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3573EA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3573EA | 1.00 | 4.38 | 4.79 | 4.79 |
| #FFFFFF | 4.38 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.79 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.79 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2481EE
Deuteranopia (green-blind)
#0071E8
Tritanopia (blue-blind)
#0090A4
Achromatopsia (no color)
#797979
Design tokens & code
CSS
--color: #3573ea; /* rgb */ color: rgb(53, 115, 234); /* oklch */ color: oklch(58.2% 0.191 261.8);
Tailwind
colors: {
custom: {
50: '#869af1',
500: '#3573ea',
950: '#000000',
},
}SCSS
$custom: #3573ea; $custom-light: #869af1; $custom-dark: #000000;
JSON
{
"hex": "#3573ea",
"rgb": {
"r": 53,
"g": 115,
"b": 234
},
"hsl": {
"h": 219.448,
"s": 81.166,
"l": 56.275
},
"oklch": {
"l": 0.58185,
"c": 0.19146,
"h": 261.8
},
"luminance": 0.18959
}Semantic roles & 50–950 ramp
primary
#3573EA
secondary
#E3C998
accent
#B330F8
background
#F9F9FE
surface
#F1F2FD
border
#CBCCD5
text
#0D0E17
muted
#7E7E85