What is the saddest color scheme for a business?

It really depends on the business tbh. A coastal place tat uses browns and beiges is likely innapropriate as a cabin in the woods that loves on turquoises is silly.

My company colors, brown and yellow.

ANY green would be worse. Especially grayish green or muted green or throw-up green. It just doesn't fit well on screens. Green is outdoorsy.

Grey, black and orange would be a good corporate colour scheme for a business producing Halloween novelties.

Bright kiddy colours.

Muted light blue and white because it's overused.

In northern Ireland, in the 60s the government decided to join the two towns of Portadown and Lurgan together to form the new city of Craigavon.

The whole "city" dream never really worked out so what they have today is a weird sci fi town where all the buildings are like post modernist 60s and 70s tower blocks and it feels really odd and unsettling, like being in an old abandoned theme park or something. A lot of turquoise coloured stuff.

Brown and yellow

Any pale green shade, some idiot in the sixties thought it would be restful on the eyes, it makes me want to chunder!