from tkinter import *


root = Tk()

l1 = Label(width = 17)
l1.pack()

l0 = Entry(justify = CENTER)
l0.pack()

def Red():
    l1.config(text = 'Красный')
    l0.delete(0, END)
    l0.insert(0, '#ff0000')
def Orange():
    l1.config(text = 'Оранжевый')
    l0.delete(0, END)
    l0.insert(0, '#ff7d00')
def Yellow():
    l1.config(text = 'Желтый')
    l0.delete(0, END)
    l0.insert(0, '#ffff00')
def Green():
    l1.config(text = 'Зеленый')
    l0.delete(0, END)
    l0.insert(0, '#00ff00')
def Cyan():
    l1.config(text = 'Голубой')
    l0.delete(0, END)
    l0.insert(0, '#007dff')
def Blue():
    l1.config(text = 'Синий')
    l0.delete(0, END)
    l0.insert(0, '#0000ff')
def Purple():
    l1.config(text = 'Фиолетовый')
    l0.delete(0, END)
    l0.insert(0, '#7d00ff')

b1 = Button(width = 16, bg = '#ff0000',command = Red)
b1.pack()

b2 = Button(width = 16, bg = '#ff7d00', command = Orange)
b2.pack()

b3 = Button(width = 16, bg = '#ffff00', command = Yellow)
b3.pack()

b4 = Button(width = 16, bg = '#00ff00', command = Green)
b4.pack()

b5 = Button(width = 16, bg = '#007dff', command = Cyan)
b5.pack()

b6 = Button(width = 16, bg = '#0000ff', command = Blue)
b6.pack()

b7 = Button(width = 16, bg = '#7d00ff', command = Green)
b7.pack()
root.mainloop()