Pair your khaki trouser with a blush blouse or blazer.
Instead of wearing normal knit sweaters go for cropped ones.
To formalize the look, match the suit and the shirt with a blue, navy, or charcoal grey tie.
Go, melt some hearts with this sweet look.
The Color Wheel is the foundation of all color combinations.
As an alternative, you can combine a grey tie, a shade similar to the shade of the suit.