#537CC5#537CC5
#537CC5 is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.0% C 0.121 H 261.2°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).
Color values
| HEX | #537CC5 |
|---|---|
| RGB | rgb(83, 124, 197) |
| HSL | hsl(218, 50%, 55%) |
| HSV | hsv(218, 58%, 77%) |
| CMYK | cmyk(57.9%, 37.1%, 0%, 22.7%) |
| CIE-LAB | lab(52.16, 7.77, -42.37) |
| CIE-LCH | lch(52.16, 43.08, 280.39°) |
| OKLab | oklab(58.99% -0.0185 -0.12) |
| OKLCH | oklch(58.99% 0.121 261.2) |
| XYZ | xyz(20.8495, 20.2838, 55.6289) |
| Luminance | 0.2029 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 4.47
Off Blue
#5684AE
ΔE00 4.88
Cornflower Blue
#5170D7
ΔE00 4.93
Cool Blue
#4984B8
ΔE00 5.33
Dusty Blue
#5A86AD
ΔE00 5.46
Steel Blue
#4682B4
ΔE00 5.57
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CC5 #C59C53
analogous
#53B5C5 #537CC5 #6353C5
triadic
#537CC5 #C5537C #7CC553
tetradic
#537CC5 #C553B5 #C59C53 #53C563
square
#537CC5 #C553B5 #C59C53 #53C563
split-complementary
#537CC5 #C56353 #B5C553
monochromatic
#284476 #375EA4 #537CC5 #819FD4 #AFC2E4
Accessibility & contrast
On white
4.15
#537CC5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.06
#537CC5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CC5
5.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CC5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CC5 | 1.00 | 4.15 | 5.06 | 5.06 |
| #FFFFFF | 4.15 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.06 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.06 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E82C8
Deuteranopia (green-blind)
#4F78C3
Tritanopia (blue-blind)
#008C97
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #537cc5; /* rgb */ color: rgb(83, 124, 197); /* oklch */ color: oklch(59.0% 0.121 261.2);
Tailwind
colors: {
custom: {
50: '#8ca1d7',
500: '#537cc5',
950: '#000000',
},
}SCSS
$custom: #537cc5; $custom-light: #8ca1d7; $custom-dark: #000000;
JSON
{
"hex": "#537cc5",
"rgb": {
"r": 83,
"g": 124,
"b": 197
},
"hsl": {
"h": 218.421,
"s": 49.565,
"l": 54.902
},
"oklch": {
"l": 0.58991,
"c": 0.12146,
"h": 261.2
},
"luminance": 0.20286
}Semantic roles & 50–950 ramp
primary
#537CC5
secondary
#D2C1A2
accent
#A74FD9
background
#F9F9FD
surface
#F1F2FA
border
#CBCCD3
text
#0D0E14
muted
#7E7E83