The phrase "rosy shades" means seeing things in a positive or optimistic way. It refers to looking at the bright side or having a hopeful perspective. Full definition
Best of all, you get to take in this sublime sight at sunrise, just as the first rays of the morning light touch the landscape with rosy shades of orange and pink. (lonelyplanet.com)
But it's a beautiful dark rosy shade with a hint of metallic that's perfect for wearing any time of day. (maybelline.com)
The blush is a cute rosy shade and the highlight looks awesome on my light / medium skin tone. (maybelline.com)