The hex color #12A8D4 is a light color. The web-safe version is Hex
#0099CC. A complementary color is
#ED572B. The grayscale version is
#858585. A 20% lighter version of the original color is
#45DBFF, and Hex
#0075A1 is the 20% darker color. If the color is saturated by 10%, you get
#07ACDC. If the color is desaturated by 10%, the color
#1DA4CC is obtained.