#516FB1#516FB1
#516FB1 is a mid, moderate blue. Relative luminance 0.163; OKLCH L 54.9% C 0.109 H 264.6°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).
Color values
| HEX | #516FB1 |
|---|---|
| RGB | rgb(81, 111, 177) |
| HSL | hsl(221, 38%, 51%) |
| HSV | hsv(221, 54%, 69%) |
| CMYK | cmyk(54.2%, 37.3%, 0%, 30.6%) |
| CIE-LAB | lab(47.35, 8.69, -38.45) |
| CIE-LCH | lch(47.35, 39.42, 282.74°) |
| OKLab | oklab(54.9% -0.0103 -0.1087) |
| OKLCH | oklch(54.9% 0.109 264.6) |
| XYZ | xyz(17.0109, 16.2913, 43.8346) |
| Luminance | 0.1629 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 2.72
Cornflower Blue
#5170D7
ΔE00 4.91
Medium Blue
#2C6FBB
ΔE00 5.49
Flat Blue
#3C73A8
ΔE00 5.59
Dull Blue
#49759C
ΔE00 5.70
Cadet Blue
#4E7496
ΔE00 5.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#516FB1 #B19351
analogous
#519FB1 #516FB1 #6351B1
triadic
#516FB1 #B1516F #6FB151
tetradic
#516FB1 #B1519F #B19351 #51B163
square
#516FB1 #B1519F #B19351 #51B163
split-complementary
#516FB1 #B16351 #9FB151
monochromatic
#2A3A5E #3D5488 #516FB1 #7B92C4 #A6B5D7
Accessibility & contrast
On white
4.93
#516FB1 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.26
#516FB1 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #516FB1
4.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##516FB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##516FB1 | 1.00 | 4.93 | 4.26 | 4.93 |
| #FFFFFF | 4.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.26 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5575B4
Deuteranopia (green-blind)
#496CB0
Tritanopia (blue-blind)
#1D7D87
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #516fb1; /* rgb */ color: rgb(81, 111, 177); /* oklch */ color: oklch(54.9% 0.109 264.6);
Tailwind
colors: {
custom: {
50: '#8898c8',
500: '#516fb1',
950: '#000000',
},
}SCSS
$custom: #516fb1; $custom-light: #8898c8; $custom-dark: #000000;
JSON
{
"hex": "#516fb1",
"rgb": {
"r": 81,
"g": 111,
"b": 177
},
"hsl": {
"h": 221.25,
"s": 38.095,
"l": 50.588
},
"oklch": {
"l": 0.54902,
"c": 0.10921,
"h": 264.6
},
"luminance": 0.16293
}Semantic roles & 50–950 ramp
primary
#516FB1
secondary
#C4B79A
accent
#AA5ACE
background
#F8F9FC
surface
#F0F2F8
border
#CBCCD1
text
#0C0D13
muted
#7D7E82