Draw Color Names

This example uses TURTLETEXT to draw the names and the color values of the first 16 colors available as color indexes.

ColorNames.lgo

to show.color.names
    cs
    pu ht
    setpos [0 225]
    (local "max "rgb)
    make "max 16 ; use count colors for the entire list
    make "max :max - 1
    for "i 0 :max [
        pu
        if (remainder :i 2) = 1 [
            setx xcor + 120
        ] [
            sety ycor - 25 setx 0
        ]
        make "rgb color.name.to.rgb item (:i + 1) colors
        pd
        tt (list :rgb)
        pu
        setx xcor + 100
        pd
        tt item (:i + 1) colors
    ]
end

; Output the RGB list for a given color name.
; NOTE: Logo 4 has the procedure COLOR built in that does the very same.

to color.name.to.rgb :name
    LOCAL "old make "old PC
    SETPC :name
    LOCAL "result make "result PC
    SETPC :old
    OP :result
end

show.color.names

---

Procedure	SHOW.COLOR.NAMES
Description	Draw the names and the color values of the 16 colors available as color indexes
Level	Intermediate
Tags	Drawing, Colors, Turtle