What Can You Wear To Both The Board Room And A Garden Party?

I think I’ve reached a point in my career where I get to be as comfortable as needed while I’m at work. For 6 hours, I should be able to relax with what I’m wearing, both in terms of thinking about what to wear as well as being able to feel relaxed at a moments notice. A full suit can get itchy, and I’m always getting holes around the pockets. However, I feel that I need to look like a professional. So what combines those worlds?
Sports coat 100%
Jeans that look like tight pants 100%
Cornflower Blue 100%