The hex color #0c65b3 is a dark color. The web-safe version is Hex
#0066CC. A complementary color is
#F39A4C. The grayscale version is
#616161. A 20% lighter version of the original color is
#3F98E6, and Hex
#003280 is the 20% darker color. If the color is saturated by 10%, you get
#0365BB. If the color is desaturated by 10%, the color
#1565AB is obtained.