The hex color #be1b29 is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#41E4D6. The grayscale version is
#565656. A 20% lighter version of the original color is
#F14E5C, and Hex
#8B0000 is the 20% darker color. If the color is saturated by 10%, you get
#C81525. If the color is desaturated by 10%, the color
#B4212E is obtained.