The hex color #f1f45b is a light color. The web-safe version is Hex
#FFFF66. A complementary color is
#0E0BA4. The grayscale version is
#C0C0C0. A 20% lighter version of the original color is
#FFFF8E, and Hex
#BEC128 is the 20% darker color. If the color is saturated by 10%, you get
#F6F951. If the color is desaturated by 10%, the color
#ECEF65 is obtained.