Use layers to fresh up your online look.
I recommend to use teal color as an accent.

Outfit formulas:
Pants beige + teal polo + brown shoes
or
Pants blue + striped shirt + teal sweater + brown shoes
or
Pants white +teal polo + brown jacket + brown shoes

For online:
You can try to wear teal sweater on shoulders (like on photo) top of shirt.

Use color blocks for outfits to make it more interesting.


Outfit formulas:
Blue + red + white
Blue + red + brown
Beige + blue + brown

Don't forget to use different textures and accessories, for example red belt is perfect accent with blue outfit.

Photo example shows how color blocks are working, but in our case we can use red tie with casual blue shirt and blazer.