Color Cycling Spinner
A spinner whose color slides through the whole spectrum as it turns, using a hue-rotate filter on top of your accent color. Set the accent and it cycles from there.
Also known as: rainbow spinner, color changing loader.
HTML
<div class="ldr-hue-ring" role="status" aria-label="Loading"></div>
CSS
.ldr-hue-ring {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
width: var(--s);
height: var(--s);
border: calc(var(--s) / 10) solid transparent;
border-top-color: var(--c);
border-right-color: var(--c);
border-radius: 50%;
animation: ldr-hue-ring-spin 1s linear infinite, ldr-hue-ring-hue 3s linear infinite;
}
@keyframes ldr-hue-ring-spin {
to { transform: rotate(360deg); }
}
@keyframes ldr-hue-ring-hue {
to { filter: hue-rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
.ldr-hue-ring, .ldr-hue-ring *, .ldr-hue-ring::before, .ldr-hue-ring::after {
animation-duration: 3s;
}
}Customizing this loader
- Color: set
--ldr-coloron the element or a parent. Currently previewing#3b82f6. - Size: set
--ldr-size. Every dimension in the snippet is derived from it. Currently previewing64px. - Speed: change the duration on the
animationshorthand. Delays on the children are relative, so they keep their rhythm. - Accessibility: the root carries
role="status"and anaria-labelso screen readers announce the wait. The reduced-motion rule at the end slows the animation for users who asked for less motion.