The hex color #ddce1b is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#2231E4. The grayscale version is
#979797. A 20% lighter version of the original color is
#FFFF4E, and Hex
#AA9B00 is the 20% darker color. If the color is saturated by 10%, you get
#E4D30F. If the color is desaturated by 10%, the color
#D6C927 is obtained.