The phrase "bold contours" refers to strong and prominent lines or shapes. It means that something stands out clearly and is easily noticeable.
Sentences with «bold contours»
A brief period in France introduced the artist to works by Braque, Picasso and Klee, with the flat colour planes and bold contours of the post-Impressionist Cloissonist style also a visible influence. (christies.com)
The 10 may be the best looking HTC phone yet, with bold contours and chamfered edges which play with the light. (t3.com)
Inspired by light and sculpted to perfection, the HTC 10 employs a new approach to design where bold contours are carved out of solid metal. (techwelike.com)