#516CBB#516CBB
#516CBB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.8% C 0.127 H 267.9°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #516CBB |
|---|---|
| RGB | rgb(81, 108, 187) |
| HSL | hsl(225, 44%, 53%) |
| HSV | hsv(225, 57%, 73%) |
| CMYK | cmyk(56.7%, 42.2%, 0%, 26.7%) |
| CIE-LAB | lab(47.05, 13.86, -44.73) |
| CIE-LCH | lch(47.05, 46.83, 287.22°) |
| OKLab | oklab(54.85% -0.0048 -0.1271) |
| OKLCH | oklch(54.85% 0.127 267.9) |
| XYZ | xyz(17.7225, 16.0610, 49.1702) |
| Luminance | 0.1606 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 3.44
Cornflower Blue
#5170D7
ΔE00 3.94
Royal Blue
#4169E1
ΔE00 4.89
Medium Blue
#2C6FBB
ΔE00 6.28
Cadet Blue
#4E7496
ΔE00 6.57
Mid Blue
#276AB3
ΔE00 6.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#516CBB #BBA051
analogous
#51A1BB #516CBB #6B51BB
triadic
#516CBB #BB516C #6CBB51
tetradic
#516CBB #BB51A1 #BBA051 #51BB6B
square
#516CBB #BB51A1 #BBA051 #51BB6B
split-complementary
#516CBB #BB6B51 #A1BB51
monochromatic
#293969 #3A5195 #516CBB #7D91CC #A9B6DD
Accessibility & contrast
On white
4.99
#516CBB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#516CBB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #516CBB
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##516CBB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##516CBB | 1.00 | 4.99 | 4.21 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4A75BE
Deuteranopia (green-blind)
#3D6BB9
Tritanopia (blue-blind)
#0A7D8A
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #516cbb; /* rgb */ color: rgb(81, 108, 187); /* oklch */ color: oklch(54.8% 0.127 267.9);
Tailwind
colors: {
custom: {
50: '#8a95d0',
500: '#516cbb',
950: '#000000',
},
}SCSS
$custom: #516cbb; $custom-light: #8a95d0; $custom-dark: #000000;
JSON
{
"hex": "#516cbb",
"rgb": {
"r": 81,
"g": 108,
"b": 187
},
"hsl": {
"h": 224.717,
"s": 43.802,
"l": 52.549
},
"oklch": {
"l": 0.54846,
"c": 0.12722,
"h": 267.9
},
"luminance": 0.16062
}Semantic roles & 50–950 ramp
primary
#516CBB
secondary
#CBBF9D
accent
#B354D4
background
#F8F9FC
surface
#F0F1F9
border
#CBCBD2
text
#0C0D14
muted
#7D7E82