Reply To: How to change the color of the Variable products and swatches placeholders?

Hello,

Try to use the code below for help. Define it in Theme Settings -> Custom CSS.

.single-product [class*="wd-swatches"].wd-text-style-4 .wd-swatch.wd-text:is(.wd-active,:hover:not(.wd-disabled)) {
    background-color: var(--wd-primary-color);
}

Kind Regards