The contrast used here is effective between the 4 bold lines of text, that are also used as a background, and the body text of the article. The bold black in the large background text also contrasts well with the pink. -TR.
Spoon Graphics. (2016). Showcase of Creative Designs Made with Vibrant Gradients. [online] Available at: http://blog.spoongraphics.co.uk/articles/showcase-of-creative-designs-made-with-vibrant-gradients [Accessed 15 Jul. 2016].