Change color of thumbnail (Pictorico theme)

When you visit my site you see a “test” post without a picture, and the tile is blue. I cannot seem to change the color to red (or dd3333 to be specific). I’ve been looking for hours and hours but cannot find a CSS change that works for me. Can anybody help me?
Much appreciated.

  • This topic was modified 19 hours, 18 minutes ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Developing with WordPress topic

The page I need help with: [log in to see the link]

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