The hex color #2a4d4c is a dark color. The web-safe version is Hex
#336633. A complementary color is
#D5B2B3. The grayscale version is
#414141. A 20% lighter version of the original color is
#5D807F, and Hex
#001A19 is the 20% darker color. If the color is saturated by 10%, you get
#284E4D. If the color is desaturated by 10%, the color
#2C4C4B is obtained.