green
緑 centers on the color green, especially the fresh green of plants and nature.
緑 combines 糸 (thread) with 录, which likely contributes the sound. The original meaning relates to dyeing thread green, and the character later came to represent the color green itself.
The left side 糸 is thread, and the right side 录 looks like a plant with water dripping. Imagine green thread dyed with fresh plant juice.
For リョク, picture a green leaf floating on a calm lake: the leaf's green color cues リョク, and the lake reflects the fresh green of nature.
green
green; green color
green tea; Japanese tea
green tract of land; green space
greening (i.e. planting to increase greenery); tree planting; afforestation
glaucoma
fresh verdure; new green leaves
dark (deep) green
Green Party; The Greens
evergreen
euglena (freshwater flagellate)
greenish yellow
environmental park; ryokuchi park
verdigris; green rust; copper rust
evergreen tree; (an) evergreen
chlorophyl
early-summer breeze
mung bean (Vigna radiata); green gram
dark green; deep green
green leaves