#517DD7#517DD7
#517DD7 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.146 H 263.1°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #517DD7 |
|---|---|
| RGB | rgb(81, 125, 215) |
| HSL | hsl(220, 63%, 58%) |
| HSV | hsv(220, 62%, 84%) |
| CMYK | cmyk(62.3%, 41.9%, 0%, 15.7%) |
| CIE-LAB | lab(53.30, 12.82, -50.78) |
| CIE-LCH | lch(53.30, 52.38, 284.17°) |
| OKLab | oklab(60.16% -0.0175 -0.1447) |
| OKLCH | oklch(60.16% 0.146 263.1) |
| XYZ | xyz(22.9884, 21.3208, 67.1807) |
| Luminance | 0.2132 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 4.03
Clear Blue
#247AFD
ΔE00 4.22
Dodger Blue
#3E82FC
ΔE00 4.33
Deep Sky Blue
#0D75F8
ΔE00 4.72
Cornflower Blue
#5170D7
ΔE00 4.80
Soft Blue
#6488EA
ΔE00 4.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#517DD7 #D7AB51
analogous
#51C0D7 #517DD7 #6851D7
triadic
#517DD7 #D7517D #7DD751
tetradic
#517DD7 #D751C0 #D7AB51 #51D768
square
#517DD7 #D751C0 #D7AB51 #51D768
split-complementary
#517DD7 #D76851 #C0D751
monochromatic
#20448D #2C5CBF #517DD7 #83A2E2 #B5C7EE
Accessibility & contrast
On white
3.99
#517DD7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#517DD7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #517DD7
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##517DD7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##517DD7 | 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)
#5486DA
Deuteranopia (green-blind)
#407AD5
Tritanopia (blue-blind)
#00919F
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #517dd7; /* rgb */ color: rgb(81, 125, 215); /* oklch */ color: oklch(60.2% 0.146 263.1);
Tailwind
colors: {
custom: {
50: '#8ea2e4',
500: '#517dd7',
950: '#000000',
},
}SCSS
$custom: #517dd7; $custom-light: #8ea2e4; $custom-dark: #000000;
JSON
{
"hex": "#517dd7",
"rgb": {
"r": 81,
"g": 125,
"b": 215
},
"hsl": {
"h": 220.299,
"s": 62.617,
"l": 58.039
},
"oklch": {
"l": 0.60161,
"c": 0.14575,
"h": 263.1
},
"luminance": 0.21323
}Semantic roles & 50–950 ramp
primary
#517DD7
secondary
#DDCBA7
accent
#B042E6
background
#F9F9FE
surface
#F2F2FC
border
#CCCCD5
text
#0D0F15
muted
#7E7E84