WeVividWeVividPreview a primary, secondary, accent and hover colour applied to a mobile or desktop app mock-up, then export as JSON, CSS or PNG.
A flat swatch doesn't show how a colour reads as a button, header or accent — this shows all four roles at once, on both mobile and desktop.
Yes — the Colour Palette Generator links here with your chosen colour already filled in as the primary colour.
Both contain your primary, secondary, accent and hover colours — the JSON as a plain object, the CSS as custom properties on :root, ready to drop into a project.