The hex color #e6e67b is a light color. The web-safe version is Hex
#FFFF66. A complementary color is
#191984. The grayscale version is
#C2C2C2. A 20% lighter version of the original color is
#FFFFAE, and Hex
#B3B348 is the 20% darker color. If the color is saturated by 10%, you get
#EAEA74. If the color is desaturated by 10%, the color
#E2E282 is obtained.