Contrasting means strikingly different, and set side by side on purpose. Contrasting colours, contrasting styles, a contrasting trim.
The on purpose is the point — contrasting things are placed together to make the difference visible, which is why the word belongs to design and to argument alike. In colour, the strongest contrasts are between opposite sides of the wheel.
1adjectivecontrastingStrikingly different, and set side by side on purpose.
“The designer chose contrasting colours, pairing a black sofa with bright yellow cushions.”
contrasting is a quality of difference.
Latin
contrāstō — to resist", "to withstand
French
contraster
English
contrast
English, today
contrasting
Built from
From contrast + -ing. contrast comes from French contraster, from Latin contrāstō (“to resist", "to withstand”), from contrā (“against”) + stō (“to stand”).
Etymology from Wiktionary, CC BY-SA