Create a flow chartStep $0.$ Start

Step $1.$ Take the name of two primary color $($X$,$Y$).$

Step $2.$ Check $($X$,$Y$)=$ Red or Blue or Yellow

Step $3.$ If step $2$ is false then

Print$("$ERROR MESSAGE"$)$

Step $4.$ If step $2$ is true then

If X$=$ Red and Y$=$ Blue then, Print$("$ PURPLE"$)$

If X$=$ Red and Y$=$ Yellow then, Print$("$ ORANGE"$)$

If X$=$ Blud and Y$=$ Yellow then, Print$("$GREEN$")$

Step $6.$ End