#537CC1#537CC1
#537CC1 is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.8% C 0.116 H 260.3°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).
Color values
| HEX | #537CC1 |
|---|---|
| RGB | rgb(83, 124, 193) |
| HSL | hsl(218, 47%, 54%) |
| HSV | hsv(218, 57%, 76%) |
| CMYK | cmyk(57%, 35.8%, 0%, 24.3%) |
| CIE-LAB | lab(51.95, 6.45, -40.41) |
| CIE-LCH | lch(51.95, 40.92, 279.07°) |
| OKLab | oklab(58.77% -0.0195 -0.1143) |
| OKLCH | oklch(58.77% 0.116 260.3) |
| XYZ | xyz(20.3972, 20.1029, 53.2471) |
| Luminance | 0.2011 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 4.23
Off Blue
#5684AE
ΔE00 4.67
Cool Blue
#4984B8
ΔE00 5.10
Cornflower Blue
#5170D7
ΔE00 5.15
Dusty Blue
#5A86AD
ΔE00 5.29
Steel Blue
#4682B4
ΔE00 5.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CC1 #C19853
analogous
#53B3C1 #537CC1 #6153C1
triadic
#537CC1 #C1537C #7CC153
tetradic
#537CC1 #C153B3 #C19853 #53C161
square
#537CC1 #C153B3 #C19853 #53C161
split-complementary
#537CC1 #C16153 #B3C153
monochromatic
#294471 #395F9E #537CC1 #809ED1 #ADC1E1
Accessibility & contrast
On white
4.18
#537CC1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.02
#537CC1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CC1
5.02:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CC1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CC1 | 1.00 | 4.18 | 5.02 | 5.02 |
| #FFFFFF | 4.18 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.02 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.02 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6081C4
Deuteranopia (green-blind)
#5277C0
Tritanopia (blue-blind)
#008B95
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #537cc1; /* rgb */ color: rgb(83, 124, 193); /* oklch */ color: oklch(58.8% 0.116 260.3);
Tailwind
colors: {
custom: {
50: '#8ba1d4',
500: '#537cc1',
950: '#000000',
},
}SCSS
$custom: #537cc1; $custom-light: #8ba1d4; $custom-dark: #000000;
JSON
{
"hex": "#537cc1",
"rgb": {
"r": 83,
"g": 124,
"b": 193
},
"hsl": {
"h": 217.636,
"s": 47.009,
"l": 54.118
},
"oklch": {
"l": 0.58766,
"c": 0.11596,
"h": 260.3
},
"luminance": 0.20105
}Semantic roles & 50–950 ramp
primary
#537CC1
secondary
#CFBEA1
accent
#A551D7
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0D0E14
muted
#7D7E83