Characteristics Value Restrictions

Dears,

I have created two characteristics color_family & color, how can i make that if i selected a value in color_family a specific values will appear in color so that i can chose from them ?

Example:

color_family:

red

yellow

green

color:

red 1

red 2

yellow 300

yellow 301

green 23

green 34

I need to restrict values red 1 & red 2 in color if i select red in color_family.