import matplotlib.colors as colors
import colorsys
from math import *
from tkinter import *

cdic_org=colors.cnames
cdic_inv = {v:k for k, v in cdic_org.items()}
print('Inversed dic of "colors.cnames" in matplotlib')
for k, v in sorted(cdic_inv.items()):
    print(k, v)

ls_h=[0,30,60,90,120,150,180,210,240,270,300,330]
ls_s=[255,128, 64,255,128, 64,255,128, 64]
ls_v=[255,255,255,192,192,192,128,128,128]
n=len(ls_h)
m=len(ls_s)
scolor=[]
for h in ls_h:
    for s,v in zip(ls_s,ls_v):
        r,g,b=colorsys.hsv_to_rgb(h/360, s/255, v/255)
        ir=int(round(r*255,0))
        ig=int(round(g*255,0))
        ib=int(round(b*255,0))
        hrgb='#'
        hrgb=hrgb+'{0:0>2x}'.format(ir)
        hrgb=hrgb+'{0:0>2x}'.format(ig)
        hrgb=hrgb+'{0:0>2x}'.format(ib)
        scolor=scolor+[hrgb]

print()
pcolor=[]
for c in scolor:
    nmax=10**10
    num0=int(c[1:],16)
    for k in cdic_inv.keys():
        num1=int(k[1:],16)
        if abs(num0-num1)<nmax: nmax=abs(num0-num1); ch=k
    print(c,ch,cdic_inv[ch],nmax)
    pcolor=pcolor+[ch]

#tkinter
root = Tk()
f1=Frame(root)
f2=Frame(root)
f3=Frame(root)
# frame for 's' and 'v' values
for c in range(0,m+1):
    if c==0:
        Label(f1,text='HSV',borderwidth=2,relief='raised',bg='#000000',fg='#ffffff',font=('consolas',12,'bold'),width=4,height=1).grid(row=0,column=c)
        Label(f1,text='h',  borderwidth=2,relief='raised',bg='#ffffff',fg='#000000',font=('consolas',12),       width=4,height=1).grid(row=1,column=c)
    else:
        Label(f1, text='s='+str(ls_s[c-1]),borderwidth=2,relief='raised',bg='#ffffff',fg='#000000',font=('consolas',12),width=8,height=1).grid(row=0,column=c)
        Label(f1, text='v='+str(ls_v[c-1]),borderwidth=2,relief='raised',bg='#ffffff',fg='#000000',font=('consolas',12),width=8,height=1).grid(row=1,column=c)
# frame for 'h' values
for r in range(1,n+1):
    Label(f2, text=str(ls_h[r-1]),borderwidth=2,relief='raised',bg='#ffffff',fg='#000000',font=('consolas',12),width=4,height=2).grid(row=r,column=0)
# frame for color labels
k=-1
for r in range(0,n):
    for c in range(0,m):
        k=k+1
        fc='#000000'
        if 3<=c: fc='#ffffff'
        Label(f3, text=pcolor[k],borderwidth=2,relief='raised',bg=pcolor[k],fg=fc,font=('consolas',12),width=8,height=2).grid(row=r,column=c)
# pack
f1.pack(side=TOP)
f2.pack(side=LEFT)
f3.pack(side=LEFT)

root.mainloop(  )