#517DFD#517DFD
#517DFD is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.6% C 0.197 H 266.5°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).
Color values
| HEX | #517DFD |
|---|---|
| RGB | rgb(81, 125, 253) |
| HSL | hsl(225, 98%, 65%) |
| HSV | hsv(225, 68%, 99%) |
| CMYK | cmyk(68%, 50.6%, 0%, 0.8%) |
| CIE-LAB | lab(55.59, 25.89, -68.31) |
| CIE-LCH | lch(55.59, 73.06, 290.76°) |
| OKLab | oklab(62.65% -0.0121 -0.1962) |
| OKLCH | oklch(62.65% 0.197 266.5) |
| XYZ | xyz(28.4504, 23.5056, 95.9471) |
| Luminance | 0.2351 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 2.07
Dodger Blue
#3E82FC
ΔE00 3.23
Clear Blue
#247AFD
ΔE00 3.81
Soft Blue
#6488EA
ΔE00 4.03
Cornflower
#6A79F7
ΔE00 4.08
Deep Sky Blue
#0D75F8
ΔE00 5.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#517DFD #FDD151
analogous
#51D3FD #517DFD #7B51FD
triadic
#517DFD #FD517D #7DFD51
tetradic
#517DFD #FD51D3 #FDD151 #51FD7B
square
#517DFD #FD51D3 #FDD151 #51FD7B
split-complementary
#517DFD #FD7B51 #D3FD51
monochromatic
#0237D1 #1450FC #517DFD #8EAAFE #CAD7FE
Accessibility & contrast
On white
3.68
#517DFD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.70
#517DFD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #517DFD
5.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##517DFD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##517DFD | 1.00 | 3.68 | 5.70 | 5.70 |
| #FFFFFF | 3.68 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.70 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.70 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2E8DFF
Deuteranopia (green-blind)
#007EFA
Tritanopia (blue-blind)
#009BB1
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #517dfd; /* rgb */ color: rgb(81, 125, 253); /* oklch */ color: oklch(62.6% 0.197 266.5);
Tailwind
colors: {
custom: {
50: '#94a2ff',
500: '#517dfd',
950: '#000000',
},
}SCSS
$custom: #517dfd; $custom-light: #94a2ff; $custom-dark: #000000;
JSON
{
"hex": "#517dfd",
"rgb": {
"r": 81,
"g": 125,
"b": 253
},
"hsl": {
"h": 224.651,
"s": 97.727,
"l": 65.49
},
"oklch": {
"l": 0.6265,
"c": 0.19661,
"h": 266.5
},
"luminance": 0.23508
}Semantic roles & 50–950 ramp
primary
#517DFD
secondary
#F2E3B8
accent
#AB00E6
background
#F9F9FF
surface
#F2F2FF
border
#CCCCD7
text
#0F0F18
muted
#7E7E86