#537CC4#537CC4
#537CC4 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 58.9% C 0.120 H 261.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).
Color values
| HEX | #537CC4 |
|---|---|
| RGB | rgb(83, 124, 196) |
| HSL | hsl(218, 49%, 55%) |
| HSV | hsv(218, 58%, 77%) |
| CMYK | cmyk(57.7%, 36.7%, 0%, 23.1%) |
| CIE-LAB | lab(52.11, 7.44, -41.88) |
| CIE-LCH | lch(52.11, 42.54, 280.07°) |
| OKLab | oklab(58.93% -0.0188 -0.1186) |
| OKLCH | oklch(58.93% 0.12 261) |
| XYZ | xyz(20.7353, 20.2381, 55.0275) |
| Luminance | 0.2024 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 4.41
Off Blue
#5684AE
ΔE00 4.83
Cornflower Blue
#5170D7
ΔE00 4.98
Cool Blue
#4984B8
ΔE00 5.27
Dusty Blue
#5A86AD
ΔE00 5.42
Steel Blue
#4682B4
ΔE00 5.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CC4 #C49B53
analogous
#53B5C4 #537CC4 #6353C4
triadic
#537CC4 #C4537C #7CC453
tetradic
#537CC4 #C453B5 #C49B53 #53C463
square
#537CC4 #C453B5 #C49B53 #53C463
split-complementary
#537CC4 #C46353 #B5C453
monochromatic
#284475 #385EA2 #537CC4 #819FD4 #AEC1E3
Accessibility & contrast
On white
4.16
#537CC4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.05
#537CC4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CC4
5.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CC4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CC4 | 1.00 | 4.16 | 5.05 | 5.05 |
| #FFFFFF | 4.16 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E82C7
Deuteranopia (green-blind)
#5077C2
Tritanopia (blue-blind)
#008C97
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #537cc4; /* rgb */ color: rgb(83, 124, 196); /* oklch */ color: oklch(58.9% 0.120 261.0);
Tailwind
colors: {
custom: {
50: '#8ca1d6',
500: '#537cc4',
950: '#000000',
},
}SCSS
$custom: #537cc4; $custom-light: #8ca1d6; $custom-dark: #000000;
JSON
{
"hex": "#537cc4",
"rgb": {
"r": 83,
"g": 124,
"b": 196
},
"hsl": {
"h": 218.23,
"s": 48.918,
"l": 54.706
},
"oklch": {
"l": 0.58934,
"c": 0.12009,
"h": 261
},
"luminance": 0.2024
}Semantic roles & 50–950 ramp
primary
#537CC4
secondary
#D1C0A2
accent
#A74FD8
background
#F9F9FD
surface
#F1F2FA
border
#CBCCD3
text
#0D0E14
muted
#7E7E83