The hex color #38e9d5 is a light color. The web-safe version is Hex
#33FFCC. A complementary color is
#C7162A. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#6BFFFF, and Hex
#05B6A2 is the 20% darker color. If the color is saturated by 10%, you get
#2DF0DA. If the color is desaturated by 10%, the color
#43E2D0 is obtained.