selected Variant picker colour need to be different

when customer selected s size the size should be in the purple colour. My website link fuukuu.in

Paste this into this section “Custom CSS” setting (or “Custom CSS” under “Theme settings”):

.options-selection__radios :checked+span {
  background: #702ae4;
  color: white;
}

Hi @Dharani_k

Welcome to our community.

Let try to go to Admin → Sale Channels → Online Stores → Themes → click Customize your current theme.

After open the Theme editor, let select Theme Settings → scroll down to bottom section Custom CSS and paste this custom code:

.options-selection__option-value-input:checked + .options-selection__option-value-name {
  border-color: #702ae4;
  color: #702ae4;
}

Then the result will be:

Hello @Dharani_k

  1. From your Shopify Admin, navigate to Online Store > Themes > Edit Code
  2. In the Assets folder, open theme.css and add your CSS code at the end
.options-selection__option-value-input:checked + .options-selection__option-value-name {
    background: #702ae4;
    color: #fff;
}