The hex color #135cec is a dark color. The web-safe version is Hex
#0066FF. A complementary color is
#ECA313. The grayscale version is
#747474. A 20% lighter version of the original color is
#468FFF, and Hex
#0029B9 is the 20% darker color. If the color is saturated by 10%, you get
#095AF8. If the color is desaturated by 10%, the color
#1D5EE0 is obtained.