#537BD7#537BD7
#537BD7 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.8% C 0.147 H 264.7°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).
Color values
| HEX | #537BD7 |
|---|---|
| RGB | rgb(83, 123, 215) |
| HSL | hsl(222, 62%, 58%) |
| HSV | hsv(222, 61%, 84%) |
| CMYK | cmyk(61.4%, 42.8%, 0%, 15.7%) |
| CIE-LAB | lab(52.85, 14.41, -51.49) |
| CIE-LCH | lch(52.85, 53.47, 285.63°) |
| OKLab | oklab(59.84% -0.0137 -0.1468) |
| OKLCH | oklch(59.84% 0.147 264.7) |
| XYZ | xyz(22.9117, 20.9092, 67.1053) |
| Luminance | 0.2091 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 3.96
Lightish Blue
#3D7AFD
ΔE00 4.10
Clear Blue
#247AFD
ΔE00 4.54
Deep Sky Blue
#0D75F8
ΔE00 4.84
Dodger Blue
#3E82FC
ΔE00 4.89
Soft Blue
#6488EA
ΔE00 5.13
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537BD7 #D7AF53
analogous
#53BDD7 #537BD7 #6D53D7
triadic
#537BD7 #D7537B #7BD753
tetradic
#537BD7 #D753BD #D7AF53 #53D76D
square
#537BD7 #D753BD #D7AF53 #53D76D
split-complementary
#537BD7 #D76D53 #BDD753
monochromatic
#21428E #2D59C0 #537BD7 #85A1E3 #B6C7EE
Accessibility & contrast
On white
4.05
#537BD7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.18
#537BD7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537BD7
5.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537BD7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537BD7 | 1.00 | 4.05 | 5.18 | 5.18 |
| #FFFFFF | 4.05 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.18 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.18 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5185DB
Deuteranopia (green-blind)
#3D79D5
Tritanopia (blue-blind)
#00909E
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #537bd7; /* rgb */ color: rgb(83, 123, 215); /* oklch */ color: oklch(59.8% 0.147 264.7);
Tailwind
colors: {
custom: {
50: '#8fa0e4',
500: '#537bd7',
950: '#000000',
},
}SCSS
$custom: #537bd7; $custom-light: #8fa0e4; $custom-dark: #000000;
JSON
{
"hex": "#537bd7",
"rgb": {
"r": 83,
"g": 123,
"b": 215
},
"hsl": {
"h": 221.818,
"s": 62.264,
"l": 58.431
},
"oklch": {
"l": 0.59842,
"c": 0.14741,
"h": 264.7
},
"luminance": 0.20911
}Semantic roles & 50–950 ramp
primary
#537BD7
secondary
#DDCDA9
accent
#B442E5
background
#F9F9FE
surface
#F2F2FC
border
#CCCCD5
text
#0D0E15
muted
#7E7E84