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URL color overrides

You can override Members Portal colors directly from the page URL. This is useful when you want campaign-specific branding, embedded portal styling, or quick design tests without changing saved styling settings in Nexudus.

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When to use this

Use URL color overrides when you want to:
  • apply a temporary color set for a campaign or event
  • match the portal colors to a partner or white-label site
  • test a new style direction before saving it as the default
Saved colors in Nexudus remain unchanged. URL overrides only affect the session opened with that URL.

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How it works

When a page loads with supported Theme.* parameters:
  1. Nexudus reads the saved colors for the location.
  2. URL color values are applied on top of the saved colors.
  3. A dynamic stylesheet is generated and loaded with the merged values.
This means the back-end remains the source of saved colors, and URL parameters are applied after those saved colors are returned.

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Supported parameters

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Behaviour parameter

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Light mode color parameters

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Dark mode color parameters

Use the same colors for dark mode with the DarkMode suffix:
  • Theme.PrimaryColorDarkMode
  • Theme.SecondaryColorDarkMode
  • Theme.TertiaryColorDarkMode
  • Theme.BrandBlackDarkMode
  • Theme.SuccessDarkMode
  • Theme.WarningDarkMode
  • Theme.AlertDarkMode
  • Theme.InfoDarkMode
  • Theme.Highlight1DarkMode
  • Theme.Highlight2DarkMode
  • Theme.Highlight3DarkMode
  • Theme.Highlight4DarkMode
  • Theme.Highlight5DarkMode
  • Theme.GroundDarkMode
  • Theme.SurfaceDarkMode

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Example URL

Use %23 instead of # in hex values. Example: #D6BF57 must be sent as %23D6BF57.

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Priority order

If the same visual token exists in multiple places, Nexudus applies values in this order:
  1. URL override parameter
  2. Saved color in Nexudus styling settings
  3. Default portal fallback

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Light and dark mode behaviour

  • If portal mode is light, light-mode values are used.
  • If portal mode is dark, dark-mode values are used.
  • If Theme.ForceDarkMode=true, the portal is forced to dark mode for that session.
  • If Theme.ForceLightMode=true, the portal is forced to light mode for that session.
  • If Theme.DisableDarkMode=true, the portal is forced to light mode for that session.
  • If Theme.DisableLightMode=true, the portal is forced to dark mode for that session.

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Mode priority

When multiple mode parameters are present, Nexudus applies this order:
  1. Theme.DisableDarkMode=true or Theme.ForceLightMode=true (light mode)
  2. Theme.DisableLightMode=true or Theme.ForceDarkMode=true (dark mode)
  3. Customer saved mode preference

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Mode examples

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Troubleshooting

If colors are not changing as expected:
  1. Confirm parameter names are exact, including capitalization and Theme. prefix.
  2. Confirm hex values are URL-encoded with %23.
  3. Confirm you are passing the parameters on the page URL, not only after redirect steps.
  4. Confirm dark mode is not disabled when testing dark-mode colors.
  5. Hard refresh the page to avoid stale browser CSS.