salty
鹹 centers on the taste of salt: something salty, briny, or having the flavor of salt.
鹹 combines 鹵 (salt) with 咸, which likely contributes the sound and may also reinforce the idea of saltiness. The exact historical development of the right component is uncertain.
The left side 鹵 is the salt radical, and the right side 咸 looks like a container with a lid. Picture a container full of salt: 鹹 means salty.
For カン, imagine a can of salt: can -> カン, and the salt inside makes everything salty.