#5166D5#5166D5
#5166D5 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.4% C 0.171 H 271.6°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #5166D5 |
|---|---|
| RGB | rgb(81, 102, 213) |
| HSL | hsl(230, 61%, 58%) |
| HSV | hsv(230, 62%, 84%) |
| CMYK | cmyk(62%, 52.1%, 0%, 16.5%) |
| CIE-LAB | lab(47.05, 26.39, -59.68) |
| CIE-LCH | lch(47.05, 65.26, 293.86°) |
| OKLab | oklab(55.35% 0.0049 -0.1711) |
| OKLCH | oklch(55.35% 0.171 271.6) |
| XYZ | xyz(20.1509, 16.0545, 64.9748) |
| Luminance | 0.1606 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 2.72
Cornflower Blue
#5170D7
ΔE00 3.59
Dark Periwinkle
#665FD1
ΔE00 4.75
Warm Blue
#4B57DB
ΔE00 4.88
Azul
#1D5DEC
ΔE00 4.91
Bright Blue
#0165FC
ΔE00 5.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5166D5 #D5C051
analogous
#51A8D5 #5166D5 #7E51D5
triadic
#5166D5 #D55166 #66D551
tetradic
#5166D5 #D551A8 #D5C051 #51D57E
square
#5166D5 #D551A8 #D5C051 #51D57E
split-complementary
#5166D5 #D57E51 #A8D551
monochromatic
#21328A #2D44BC #5166D5 #8291E1 #B4BDED
Accessibility & contrast
On white
4.99
#5166D5 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#5166D5 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5166D5
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5166D5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5166D5 | 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)
#2276D9
Deuteranopia (green-blind)
#006AD3
Tritanopia (blue-blind)
#008094
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #5166d5; /* rgb */ color: rgb(81, 102, 213); /* oklch */ color: oklch(55.4% 0.171 271.6);
Tailwind
colors: {
custom: {
50: '#8e91e3',
500: '#5166d5',
950: '#000000',
},
}SCSS
$custom: #5166d5; $custom-light: #8e91e3; $custom-dark: #000000;
JSON
{
"hex": "#5166d5",
"rgb": {
"r": 81,
"g": 102,
"b": 213
},
"hsl": {
"h": 230.455,
"s": 61.111,
"l": 57.647
},
"oklch": {
"l": 0.55352,
"c": 0.17121,
"h": 271.6
},
"luminance": 0.16056
}Semantic roles & 50–950 ramp
primary
#5166D5
secondary
#DBD3A6
accent
#CB44E4
background
#F9F8FE
surface
#F2F0FC
border
#CCCBD5
text
#0D0C15
muted
#7E7D84