#517AEE#517AEE
#517AEE is a mid, vivid blue. Relative luminance 0.218; OKLCH L 61.0% C 0.180 H 266.5°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).
Color values
| HEX | #517AEE |
|---|---|
| RGB | rgb(81, 122, 238) |
| HSL | hsl(224, 82%, 63%) |
| HSV | hsv(224, 66%, 93%) |
| CMYK | cmyk(66%, 48.7%, 0%, 6.7%) |
| CIE-LAB | lab(53.86, 22.55, -62.79) |
| CIE-LCH | lch(53.86, 66.72, 289.76°) |
| OKLab | oklab(61.03% -0.0111 -0.18) |
| OKLCH | oklch(61.03% 0.18 266.5) |
| XYZ | xyz(25.7801, 21.8390, 83.7291) |
| Luminance | 0.2184 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.13
Clear Blue
#247AFD
ΔE00 3.59
Dodger Blue
#3E82FC
ΔE00 3.91
Cornflower
#6A79F7
ΔE00 4.34
Deep Sky Blue
#0D75F8
ΔE00 4.40
Cornflower Blue
#5170D7
ΔE00 4.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#517AEE #EEC551
analogous
#51C9EE #517AEE #7651EE
triadic
#517AEE #EE517A #7AEE51
tetradic
#517AEE #EE51C9 #EEC551 #51EE76
square
#517AEE #EE51C9 #EEC551 #51EE76
split-complementary
#517AEE #EE7651 #C9EE51
monochromatic
#113CB3 #194FE9 #517AEE #89A5F3 #C1CFF9
Accessibility & contrast
On white
3.91
#517AEE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.37
#517AEE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #517AEE
5.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##517AEE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##517AEE | 1.00 | 3.91 | 5.37 | 5.37 |
| #FFFFFF | 3.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.37 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.37 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3A88F2
Deuteranopia (green-blind)
#097AEC
Tritanopia (blue-blind)
#0095A9
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #517aee; /* rgb */ color: rgb(81, 122, 238); /* oklch */ color: oklch(61.0% 0.180 266.5);
Tailwind
colors: {
custom: {
50: '#929ff4',
500: '#517aee',
950: '#000000',
},
}SCSS
$custom: #517aee; $custom-light: #929ff4; $custom-dark: #000000;
JSON
{
"hex": "#517aee",
"rgb": {
"r": 81,
"g": 122,
"b": 238
},
"hsl": {
"h": 224.331,
"s": 82.199,
"l": 62.549
},
"oklch": {
"l": 0.61027,
"c": 0.18037,
"h": 266.5
},
"luminance": 0.21841
}Semantic roles & 50–950 ramp
primary
#517AEE
secondary
#EADBB1
accent
#A607DF
background
#F9F9FF
surface
#F2F2FE
border
#CCCCD6
text
#0E0E17
muted
#7E7E85