The hex color #6ac6c4 is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#95393B. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#9DF9F7, and Hex
#379391 is the 20% darker color. If the color is saturated by 10%, you get
#64C9C7. If the color is desaturated by 10%, the color
#70C3C1 is obtained.