#537CBD#537CBD
#537CBD is a mid, moderate blue. Relative luminance 0.199; OKLCH L 58.5% C 0.110 H 259.3°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #537CBD |
|---|---|
| RGB | rgb(83, 124, 189) |
| HSL | hsl(217, 45%, 53%) |
| HSV | hsv(217, 56%, 74%) |
| CMYK | cmyk(56.1%, 34.4%, 0%, 25.9%) |
| CIE-LAB | lab(51.75, 5.14, -38.43) |
| CIE-LCH | lch(51.75, 38.77, 277.61°) |
| OKLab | oklab(58.55% -0.0205 -0.1085) |
| OKLCH | oklch(58.55% 0.11 259.3) |
| XYZ | xyz(19.9571, 19.9268, 50.9288) |
| Luminance | 0.1993 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 4.01
Off Blue
#5684AE
ΔE00 4.44
Cool Blue
#4984B8
ΔE00 4.88
Steel Blue
#4682B4
ΔE00 5.04
Dusty Blue
#5A86AD
ΔE00 5.11
Cornflower Blue
#5170D7
ΔE00 5.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CBD #BD9453
analogous
#53B1BD #537CBD #5F53BD
triadic
#537CBD #BD537C #7CBD53
tetradic
#537CBD #BD53B1 #BD9453 #53BD5F
square
#537CBD #BD53B1 #BD9453 #53BD5F
split-complementary
#537CBD #BD5F53 #B1BD53
monochromatic
#29436C #3A5F98 #537CBD #7F9ECE #ABBFDF
Accessibility & contrast
On white
4.21
#537CBD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#537CBD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CBD
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CBD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CBD | 1.00 | 4.21 | 4.99 | 4.99 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6281C0
Deuteranopia (green-blind)
#5477BC
Tritanopia (blue-blind)
#078A94
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #537cbd; /* rgb */ color: rgb(83, 124, 189); /* oklch */ color: oklch(58.5% 0.110 259.3);
Tailwind
colors: {
custom: {
50: '#8ba1d1',
500: '#537cbd',
950: '#000000',
},
}SCSS
$custom: #537cbd; $custom-light: #8ba1d1; $custom-dark: #000000;
JSON
{
"hex": "#537cbd",
"rgb": {
"r": 83,
"g": 124,
"b": 189
},
"hsl": {
"h": 216.792,
"s": 44.538,
"l": 53.333
},
"oklch": {
"l": 0.58546,
"c": 0.11047,
"h": 259.3
},
"luminance": 0.19928
}Semantic roles & 50–950 ramp
primary
#537CBD
secondary
#CDBB9F
accent
#A254D4
background
#F8F9FC
surface
#F0F2F9
border
#CBCCD2
text
#0C0E14
muted
#7D7E82