New Post: Getting conditional formatting from an existing cell

I haven't done this myself. However, since conditional formatting is stored at the sheet level, try the IXLWorksheet.ConditionalFormats read-only property. Each IXLConditionalFormat in that IEnumerable<IXLConditionalFormat> will have properties that show you which cells participate in the conditional formatting. You should be able to determin if your current cell is one of those.

I hope this helps.