#537BDE#537BDE
#537BDE is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.3% C 0.157 H 265.4°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #537BDE |
|---|---|
| RGB | rgb(83, 123, 222) |
| HSL | hsl(223, 68%, 60%) |
| HSV | hsv(223, 63%, 87%) |
| CMYK | cmyk(62.6%, 44.6%, 0%, 12.9%) |
| CIE-LAB | lab(53.25, 16.79, -54.80) |
| CIE-LCH | lch(53.25, 57.31, 287.03°) |
| OKLab | oklab(60.28% -0.0125 -0.1565) |
| OKLCH | oklch(60.28% 0.157 265.4) |
| XYZ | xyz(23.8305, 21.2767, 71.9441) |
| Luminance | 0.2128 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 3.42
Cornflower Blue
#5170D7
ΔE00 4.00
Clear Blue
#247AFD
ΔE00 4.14
Dodger Blue
#3E82FC
ΔE00 4.42
Deep Sky Blue
#0D75F8
ΔE00 4.63
Soft Blue
#6488EA
ΔE00 4.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537BDE #DEB653
analogous
#53C0DE #537BDE #7153DE
triadic
#537BDE #DE537B #7BDE53
tetradic
#537BDE #DE53C0 #DEB653 #53DE71
square
#537BDE #DE53C0 #DEB653 #53DE71
split-complementary
#537BDE #DE7153 #C0DE53
monochromatic
#1D4199 #2757CD #537BDE #86A2E8 #BACAF2
Accessibility & contrast
On white
4.00
#537BDE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#537BDE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537BDE
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537BDE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537BDE | 1.00 | 4.00 | 5.26 | 5.26 |
| #FFFFFF | 4.00 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4C86E2
Deuteranopia (green-blind)
#3579DC
Tritanopia (blue-blind)
#0092A2
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #537bde; /* rgb */ color: rgb(83, 123, 222); /* oklch */ color: oklch(60.3% 0.157 265.4);
Tailwind
colors: {
custom: {
50: '#90a0e9',
500: '#537bde',
950: '#000000',
},
}SCSS
$custom: #537bde; $custom-light: #90a0e9; $custom-dark: #000000;
JSON
{
"hex": "#537bde",
"rgb": {
"r": 83,
"g": 123,
"b": 222
},
"hsl": {
"h": 222.734,
"s": 67.805,
"l": 59.804
},
"oklch": {
"l": 0.6028,
"c": 0.15697,
"h": 265.4
},
"luminance": 0.21279
}Semantic roles & 50–950 ramp
primary
#537BDE
secondary
#E1D2AC
accent
#B93DEB
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0E16
muted
#7E7E84