#5781EF#5781EF
#5781EF is a light, vivid blue. Relative luminance 0.240; OKLCH L 62.8% C 0.171 H 265.9°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #5781EF |
|---|---|
| RGB | rgb(87, 129, 239) |
| HSL | hsl(223, 83%, 64%) |
| HSV | hsv(223, 64%, 94%) |
| CMYK | cmyk(63.6%, 46%, 0%, 6.3%) |
| CIE-LAB | lab(56.04, 19.59, -59.82) |
| CIE-LCH | lch(56.04, 62.94, 288.13°) |
| OKLab | oklab(62.79% -0.0122 -0.1711) |
| OKLCH | oklch(62.79% 0.171 265.9) |
| XYZ | xyz(27.3553, 23.9562, 84.8270) |
| Luminance | 0.2396 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Soft Blue
#6488EA
ΔE00 2.47
Dodger Blue
#3E82FC
ΔE00 2.78
Lightish Blue
#3D7AFD
ΔE00 2.98
Clear Blue
#247AFD
ΔE00 4.16
Cornflower
#6A79F7
ΔE00 4.93
Azure
#007FFF
ΔE00 5.10
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5781EF #EFC557
analogous
#57CDEF #5781EF #7957EF
triadic
#5781EF #EF5781 #81EF57
tetradic
#5781EF #EF57CD #EFC557 #57EF79
square
#5781EF #EF57CD #EFC557 #57EF79
split-complementary
#5781EF #EF7957 #CDEF57
monochromatic
#1240BA #1F57EA #5781EF #8FABF4 #C7D5FA
Accessibility & contrast
On white
3.63
#5781EF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.79
#5781EF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #5781EF
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5781EF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5781EF | 1.00 | 3.63 | 5.79 | 5.79 |
| #FFFFFF | 3.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.79 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.79 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4A8EF3
Deuteranopia (green-blind)
#2E80ED
Tritanopia (blue-blind)
#009AAC
Achromatopsia (no color)
#868686
Design tokens & code
CSS
--color: #5781ef; /* rgb */ color: rgb(87, 129, 239); /* oklch */ color: oklch(62.8% 0.171 265.9);
Tailwind
colors: {
custom: {
50: '#94a5f5',
500: '#5781ef',
950: '#000000',
},
}SCSS
$custom: #5781ef; $custom-light: #94a5f5; $custom-dark: #000000;
JSON
{
"hex": "#5781ef",
"rgb": {
"r": 87,
"g": 129,
"b": 239
},
"hsl": {
"h": 223.421,
"s": 82.609,
"l": 63.922
},
"oklch": {
"l": 0.62794,
"c": 0.17149,
"h": 265.9
},
"luminance": 0.23959
}Semantic roles & 50–950 ramp
primary
#5781EF
secondary
#ECDDB6
accent
#A306DF
background
#F9FAFF
surface
#F2F4FE
border
#CCCED6
text
#0E0F17
muted
#7E7F85