The hex color #2c6fb0 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D3904F. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#5FA2E3, and Hex
#003C7D is the 20% darker color. If the color is saturated by 10%, you get
#256FB7. If the color is desaturated by 10%, the color
#336FA9 is obtained.