Modern CSS Filter Effects
Grayscale, blur, hue, sepia, duotone and glow filters for photos, logos, icons and text.
1Grayscale to Color
Keeps images black and white until they are hovered or focused - ideal for logo walls and team grids. Class: fx-grayscale-to-color
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<img src="https://images.unsplash.com/photo-1758270705290-62b6294dd044?auto=format&fit=crop&w=1200&h=800&q=70" alt="Photo that gains colour on hover" class="fx-grayscale-to-color object-fit-cover rounded-3" style="width:150px;height:110px"><img src="../assets/img/logo-2.svg" alt="Partner logo" class="fx-grayscale-to-color" style="width:110px;height:auto">
</div>
/* CSS (already in assets/css/effects.css) */
.fx-grayscale-to-color { filter: grayscale(1); transition: filter .5s ease; }
.fx-grayscale-to-color:hover, .fx-grayscale-to-color:focus-visible, :focus-visible > .fx-grayscale-to-color { filter: grayscale(0); }
@media (prefers-reduced-motion: reduce) {
.fx-grayscale-to-color, .fx-grayscale-to-color::before, .fx-grayscale-to-color::after, .fx-grayscale-to-color *, .fx-grayscale-to-color *::before, .fx-grayscale-to-color *::after { animation: none !important; transition: none !important; }
}2Invert Colors
Flips an image or card to its negative on hover while hue-rotate keeps the colours recognisable. Class: fx-invert-colors
A beginner's guide to getting started
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<div class="card fx-invert-colors" style="width:12rem">
<img src="https://images.unsplash.com/photo-1758270705518-b61b40527e76?auto=format&fit=crop&w=1200&h=800&q=70" alt="Card photo" class="card-img-top object-fit-cover" style="height:110px">
<div class="card-body py-2">
<p class="small mb-0 fw-semibold">A beginner's guide to getting started</p>
</div>
</div>
</div>
/* CSS (already in assets/css/effects.css) */
.fx-invert-colors { transition: filter .4s ease; }
.fx-invert-colors:hover, .fx-invert-colors:focus-visible { filter: invert(1) hue-rotate(180deg); }
@media (prefers-reduced-motion: reduce) {
.fx-invert-colors, .fx-invert-colors::before, .fx-invert-colors::after, .fx-invert-colors *, .fx-invert-colors *::before, .fx-invert-colors *::after { animation: none !important; transition: none !important; }
}3Saturation Boost
Desaturated at rest, vivid on hover - draws attention to the product the visitor is looking at. Class: fx-saturation-boost
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<img src="../assets/img/product-5.svg" alt="Product with boosted colour" class="fx-saturation-boost rounded-3 object-fit-cover" style="width:120px;height:120px"><img src="../assets/img/product-6.svg" alt="Second product" class="fx-saturation-boost rounded-3 object-fit-cover" style="width:120px;height:120px">
</div>
/* CSS (already in assets/css/effects.css) */
.fx-saturation-boost { filter: saturate(.6); transition: filter .4s ease, transform .4s ease; }
.fx-saturation-boost:hover, .fx-saturation-boost:focus-visible { filter: saturate(1.8); transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) {
.fx-saturation-boost, .fx-saturation-boost::before, .fx-saturation-boost::after, .fx-saturation-boost *, .fx-saturation-boost *::before, .fx-saturation-boost *::after { animation: none !important; transition: none !important; }
}