Finance data is usually so rich people can get cross-eyed looking at it - I totally understand that pain point!
If you’re just looking at colors/layout, I suggest stick to the basic like make your row and column headers, and totals distinct from the values. Whether it’s a different background color, text formatting (bold) etc. Opt for tonal scheme, whereby you stick to a color, say gray, and use a variation of grays throughout the tables if there are certain columns you want to stand out from the rest.
But if your intention is to visualize tabular data to make it more digestible to end-users, I recommend adding visual signals to them. Here are your options:
- Data Bars
- Color by Categories (Status)
- Color by Intensity
Shneiderman’s Overview-Zoom-Details on Demand Format
Unfortunately, there’s not a go-to catalog for tabular visualization online but I’ve put together some samples here for inspiration.