#5170CA#5170CA
#5170CA is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.6% C 0.143 H 267.4°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).
Color values
| HEX | #5170CA |
|---|---|
| RGB | rgb(81, 112, 202) |
| HSL | hsl(225, 53%, 55%) |
| HSV | hsv(225, 60%, 79%) |
| CMYK | cmyk(59.9%, 44.6%, 0%, 20.8%) |
| CIE-LAB | lab(49.01, 16.42, -50.25) |
| CIE-LCH | lch(49.01, 52.86, 288.09°) |
| OKLab | oklab(56.62% -0.0065 -0.1433) |
| OKLCH | oklch(56.62% 0.143 267.4) |
| XYZ | xyz(19.8446, 17.6003, 58.2171) |
| Luminance | 0.1760 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 1.70
Royal Blue
#4169E1
ΔE00 3.65
French Blue
#436BAD
ΔE00 4.86
Cerulean Blue
#056EEE
ΔE00 5.56
Medium Blue
#2C6FBB
ΔE00 6.32
Deep Sky Blue
#0D75F8
ΔE00 6.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5170CA #CAAB51
analogous
#51ACCA #5170CA #6E51CA
triadic
#5170CA #CA5170 #70CA51
tetradic
#5170CA #CA51AC #CAAB51 #51CA6E
square
#5170CA #CA51AC #CAAB51 #51CA6E
split-complementary
#5170CA #CA6E51 #ACCA51
monochromatic
#253B7B #3452AA #5170CA #8097D8 #AFBDE7
Accessibility & contrast
On white
4.65
#5170CA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.52
#5170CA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #5170CA
4.65:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5170CA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5170CA | 1.00 | 4.65 | 4.52 | 4.65 |
| #FFFFFF | 4.65 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.65 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#467ACD
Deuteranopia (green-blind)
#356FC8
Tritanopia (blue-blind)
#008493
Achromatopsia (no color)
#747474
Design tokens & code
CSS
--color: #5170ca; /* rgb */ color: rgb(81, 112, 202); /* oklch */ color: oklch(56.6% 0.143 267.4);
Tailwind
colors: {
custom: {
50: '#8c98db',
500: '#5170ca',
950: '#000000',
},
}SCSS
$custom: #5170ca; $custom-light: #8c98db; $custom-dark: #000000;
JSON
{
"hex": "#5170ca",
"rgb": {
"r": 81,
"g": 112,
"b": 202
},
"hsl": {
"h": 224.628,
"s": 53.304,
"l": 55.49
},
"oklch": {
"l": 0.56623,
"c": 0.14342,
"h": 267.4
},
"luminance": 0.17602
}Semantic roles & 50–950 ramp
primary
#5170CA
secondary
#D5C8A2
accent
#B74BDD
background
#F9F9FD
surface
#F1F2FB
border
#CBCCD4
text
#0D0D15
muted
#7E7E83