You can now customize the accent color of an embedded signing ceremony using the accent_color query parameter on the ceremony URL. The accent color appears in interface elements such as buttons and signature places, making it easy to align the signing experience with your brand.
How It Works
Pass any valid hexadecimal color code, without the # prefix, as the accent_color query parameter on the ceremony URL. The parameter gracefully falls back to the default SignatureAPI blue if omitted or invalid. For example, to set the accent color to purple:
https://sign.signatureapi.com/en/start?token=eyJhbGci...&accent_color=8e24aaChoose a color that remains visible against a white document background so that signature places and action buttons stay easy to find.
Why It Matters
Visual consistency builds trust. When recipients see a ceremony that matches the application they came from, the signing step feels like a native part of your product rather than a handoff to a third-party tool. This is especially useful when embedding via <iframe> in a web app or through a WebView in mobile and desktop clients.
See the full list of customization options in the Embedded Ceremonies Customization docs.
