The hex color #ecd499 is a light color. The web-safe version is Hex
#FFCC99. A complementary color is
#132B66. The grayscale version is
#C8C8C8. A 20% lighter version of the original color is
#FFFFCC, and Hex
#B9A166 is the 20% darker color. If the color is saturated by 10%, you get
#F0D594. If the color is desaturated by 10%, the color
#E8D39E is obtained.