The hex color #346e8f is a dark color. The web-safe version is Hex
#336699. A complementary color is
#CB9170. The grayscale version is
#666666. A 20% lighter version of the original color is
#67A1C2, and Hex
#013B5C is the 20% darker color. If the color is saturated by 10%, you get
#2F6F93. If the color is desaturated by 10%, the color
#396D8B is obtained.