#517BEE#517BEE
#517BEE is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.2% C 0.179 H 266.1°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).
Color values
| HEX | #517BEE |
|---|---|
| RGB | rgb(81, 123, 238) |
| HSL | hsl(224, 82%, 63%) |
| HSV | hsv(224, 66%, 93%) |
| CMYK | cmyk(66%, 48.3%, 0%, 6.7%) |
| CIE-LAB | lab(54.12, 21.94, -62.37) |
| CIE-LCH | lch(54.12, 66.12, 289.38°) |
| OKLab | oklab(61.23% -0.012 -0.1788) |
| OKLCH | oklch(61.23% 0.179 266.1) |
| XYZ | xyz(25.9036, 22.0858, 83.7702) |
| Luminance | 0.2209 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.06
Clear Blue
#247AFD
ΔE00 3.48
Dodger Blue
#3E82FC
ΔE00 3.61
Soft Blue
#6488EA
ΔE00 4.33
Deep Sky Blue
#0D75F8
ΔE00 4.42
Cornflower
#6A79F7
ΔE00 4.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#517BEE #EEC451
analogous
#51CAEE #517BEE #7551EE
triadic
#517BEE #EE517B #7BEE51
tetradic
#517BEE #EE51CA #EEC451 #51EE75
square
#517BEE #EE51CA #EEC451 #51EE75
split-complementary
#517BEE #EE7551 #CAEE51
monochromatic
#113DB3 #1951E9 #517BEE #89A5F3 #C1D0F9
Accessibility & contrast
On white
3.88
#517BEE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.42
#517BEE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #517BEE
5.42:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##517BEE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##517BEE | 1.00 | 3.88 | 5.42 | 5.42 |
| #FFFFFF | 3.88 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.42 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.42 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3C89F2
Deuteranopia (green-blind)
#117BEC
Tritanopia (blue-blind)
#0096A9
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #517bee; /* rgb */ color: rgb(81, 123, 238); /* oklch */ color: oklch(61.2% 0.179 266.1);
Tailwind
colors: {
custom: {
50: '#92a0f4',
500: '#517bee',
950: '#000000',
},
}SCSS
$custom: #517bee; $custom-light: #92a0f4; $custom-dark: #000000;
JSON
{
"hex": "#517bee",
"rgb": {
"r": 81,
"g": 123,
"b": 238
},
"hsl": {
"h": 223.949,
"s": 82.199,
"l": 62.549
},
"oklch": {
"l": 0.61227,
"c": 0.17917,
"h": 266.1
},
"luminance": 0.22088
}Semantic roles & 50–950 ramp
primary
#517BEE
secondary
#EADBB1
accent
#A507DF
background
#F9F9FF
surface
#F2F2FE
border
#CCCCD6
text
#0E0E17
muted
#7E7E85