Classic Logo for Accounting Firm

I need a timeless logo for my company, Jolly's Accounting & Tax Service. The look should feel classic—think professional, trustworthy, and straightforward—while still standing out in today’s digital and print spaces.

Please combine an icon with the full business name; a clean blue-and-white palette is non-negotiable, as these colors already feature in our stationery. I’m open to your creative take on the symbol itself (perhaps a subtle reference to finance or balanced books), but it must remain simple enough to scale well on everything from business cards to social banners.

Deliverables—sent in both light and dark-background versions—should include:
• Vector master file (AI or SVG)
• High-resolution PNG and JPG sets
• Font details and color codes
• A monochrome version for stamps and faxed documents

I’ll consider the project complete once the final files import cleanly into Adobe Illustrator and the design holds its clarity at 20 px as well as at 2 ft.