The hex color #16b5ef is a light color. The web-safe version is Hex
#00CCFF. A complementary color is
#E94A10. The grayscale version is
#939393. A 20% lighter version of the original color is
#49E8FF, and Hex
#0082BC is the 20% darker color. If the color is saturated by 10%, you get
#09B8F8. If the color is desaturated by 10%, the color
#23B2E6 is obtained.