#537CDA#537CDA
#537CDA is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.150 H 264.6°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #537CDA |
|---|---|
| RGB | rgb(83, 124, 218) |
| HSL | hsl(222, 65%, 59%) |
| HSV | hsv(222, 62%, 85%) |
| CMYK | cmyk(61.9%, 43.1%, 0%, 14.5%) |
| CIE-LAB | lab(53.29, 14.82, -52.48) |
| CIE-LCH | lch(53.29, 54.53, 285.76°) |
| OKLab | oklab(60.24% -0.0142 -0.1496) |
| OKLCH | oklch(60.24% 0.15 264.6) |
| XYZ | xyz(23.4254, 21.3142, 69.1956) |
| Luminance | 0.2132 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 3.77
Clear Blue
#247AFD
ΔE00 4.27
Cornflower Blue
#5170D7
ΔE00 4.32
Dodger Blue
#3E82FC
ΔE00 4.43
Soft Blue
#6488EA
ΔE00 4.69
Deep Sky Blue
#0D75F8
ΔE00 4.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#537CDA #DAB153
analogous
#53BFDA #537CDA #6E53DA
triadic
#537CDA #DA537C #7CDA53
tetradic
#537CDA #DA53BF #DAB153 #53DA6E
square
#537CDA #DA53BF #DAB153 #53DA6E
split-complementary
#537CDA #DA6E53 #BFDA53
monochromatic
#204393 #2A59C5 #537CDA #85A2E5 #B8C9F0
Accessibility & contrast
On white
3.99
#537CDA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#537CDA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #537CDA
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##537CDA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##537CDA | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 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)
#5186DE
Deuteranopia (green-blind)
#3C7AD8
Tritanopia (blue-blind)
#0091A0
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #537cda; /* rgb */ color: rgb(83, 124, 218); /* oklch */ color: oklch(60.2% 0.150 264.6);
Tailwind
colors: {
custom: {
50: '#8fa1e6',
500: '#537cda',
950: '#000000',
},
}SCSS
$custom: #537cda; $custom-light: #8fa1e6; $custom-dark: #000000;
JSON
{
"hex": "#537cda",
"rgb": {
"r": 83,
"g": 124,
"b": 218
},
"hsl": {
"h": 221.778,
"s": 64.593,
"l": 59.02
},
"oklch": {
"l": 0.60237,
"c": 0.15032,
"h": 264.6
},
"luminance": 0.21316
}Semantic roles & 50–950 ramp
primary
#537CDA
secondary
#DFCFAA
accent
#B540E8
background
#F9F9FE
surface
#F2F2FC
border
#CCCCD5
text
#0D0E16
muted
#7E7E84