#537FE5#537FE5
#537FE5 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.5% C 0.162 H 264.6°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).
Color values
| HEX | #537FE5 |
|---|---|
| RGB | rgb(83, 127, 229) |
| HSL | hsl(222, 74%, 61%) |
| HSV | hsv(222, 64%, 90%) |
| CMYK | cmyk(63.8%, 44.5%, 0%, 10.2%) |
| CIE-LAB | lab(54.73, 16.73, -56.35) |
| CIE-LCH | lch(54.73, 58.78, 286.53°) |
| OKLab | oklab(61.55% -0.0153 -0.161) |
| OKLCH | oklch(61.55% 0.162 264.6) |
| XYZ | xyz(25.2946, 22.6725, 77.1568) |
| Luminance | 0.2268 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.96
Dodger Blue
#3E82FC
ΔE00 3.06
Soft Blue
#6488EA
ΔE00 3.42
Clear Blue
#247AFD
ΔE00 3.71
Azure
#007FFF
ΔE00 4.71
Deep Sky Blue
#0D75F8
ΔE00 4.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537FE5 #E5B953
analogous
#53C8E5 #537FE5 #7053E5
triadic
#537FE5 #E5537F #7FE553
tetradic
#537FE5 #E553C8 #E5B953 #53E570
square
#537FE5 #E553C8 #E5B953 #53E570
split-complementary
#537FE5 #E57053 #C8E553
monochromatic
#1943A5 #2159DA #537FE5 #88A7ED #BDCEF5
Accessibility & contrast
On white
3.79
#537FE5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.53
#537FE5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537FE5
5.53:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537FE5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537FE5 | 1.00 | 3.79 | 5.53 | 5.53 |
| #FFFFFF | 3.79 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.53 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.53 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4E8AE9
Deuteranopia (green-blind)
#357DE3
Tritanopia (blue-blind)
#0096A7
Achromatopsia (no color)
#838383
Design tokens & code
CSS
--color: #537fe5; /* rgb */ color: rgb(83, 127, 229); /* oklch */ color: oklch(61.5% 0.162 264.6);
Tailwind
colors: {
custom: {
50: '#91a3ee',
500: '#537fe5',
950: '#000000',
},
}SCSS
$custom: #537fe5; $custom-light: #91a3ee; $custom-dark: #000000;
JSON
{
"hex": "#537fe5",
"rgb": {
"r": 83,
"g": 127,
"b": 229
},
"hsl": {
"h": 221.918,
"s": 73.737,
"l": 61.176
},
"oklch": {
"l": 0.61549,
"c": 0.16171,
"h": 264.6
},
"luminance": 0.22675
}Semantic roles & 50–950 ramp
primary
#537FE5
secondary
#E5D5AE
accent
#9A10D6
background
#F9FAFE
surface
#F2F3FD
border
#CCCDD5
text
#0E0F16
muted
#7E7F84