#537AC0#537AC0
#537AC0 is a mid, moderate blue. Relative luminance 0.196; OKLCH L 58.3% C 0.117 H 261.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #537AC0 |
|---|---|
| RGB | rgb(83, 122, 192) |
| HSL | hsl(219, 46%, 54%) |
| HSV | hsv(219, 57%, 75%) |
| CMYK | cmyk(56.8%, 36.5%, 0%, 24.7%) |
| CIE-LAB | lab(51.34, 7.33, -40.81) |
| CIE-LCH | lch(51.34, 41.46, 280.18°) |
| OKLab | oklab(58.27% -0.0175 -0.1155) |
| OKLCH | oklch(58.27% 0.117 261.4) |
| XYZ | xyz(20.0380, 19.5622, 52.5789) |
| Luminance | 0.1956 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 4.33
Cornflower Blue
#5170D7
ΔE00 4.62
Off Blue
#5684AE
ΔE00 5.19
Cool Blue
#4984B8
ΔE00 5.71
Flat Blue
#3C73A8
ΔE00 5.81
Dusty Blue
#5A86AD
ΔE00 5.81
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537AC0 #C09953
analogous
#53B1C0 #537AC0 #6353C0
triadic
#537AC0 #C0537A #7AC053
tetradic
#537AC0 #C053B1 #C09953 #53C063
square
#537AC0 #C053B1 #C09953 #53C063
split-complementary
#537AC0 #C06353 #B1C053
monochromatic
#294270 #395D9C #537AC0 #809DD0 #ADBFE1
Accessibility & contrast
On white
4.27
#537AC0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.91
#537AC0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537AC0
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537AC0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537AC0 | 1.00 | 4.27 | 4.91 | 4.91 |
| #FFFFFF | 4.27 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.91 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.91 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D80C3
Deuteranopia (green-blind)
#4F76BF
Tritanopia (blue-blind)
#008A94
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #537ac0; /* rgb */ color: rgb(83, 122, 192); /* oklch */ color: oklch(58.3% 0.117 261.4);
Tailwind
colors: {
custom: {
50: '#8ba0d3',
500: '#537ac0',
950: '#000000',
},
}SCSS
$custom: #537ac0; $custom-light: #8ba0d3; $custom-dark: #000000;
JSON
{
"hex": "#537ac0",
"rgb": {
"r": 83,
"g": 122,
"b": 192
},
"hsl": {
"h": 218.532,
"s": 46.383,
"l": 53.922
},
"oklch": {
"l": 0.58272,
"c": 0.11681,
"h": 261.4
},
"luminance": 0.19564
}Semantic roles & 50–950 ramp
primary
#537AC0
secondary
#CFBEA0
accent
#A752D6
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0D0E14
muted
#7D7E83