#!usr/bin/python3 #Author Fredrick Pwol ''' Conversion of color system from one to another e.g from R.G.B to H.S.L and checking of any color shade given in either hexadecimal or r,g,b The # symbol can be ommited if you don't want to to include it and can also be written with the value. conversions: rgb => Hex; Hex => rgb; rgb => hsl; hsl => rgb; hsv => rgb ; rgb => cmyk; cmyk => rgb and color checking to which return the shade of the color passed in. list of all color shades: *red *green *blue *yellow *orange or brown *pink *cyan *magenta *red-orange *orange-yellow *green-cyan *cyan-blue *blue-magenta *magenta-pink *pink-red *grey *black *white ''' #resources: #http://www.workwithcolor.com/color-names-01.htm #https://www.wikipedia.org/wiki/HSL_and_HSV import re from math import floor def rgbHex(r,g,b :int): ''' rgb to hex converter Arguments: r = red channel g = green channel b = blue channel Pass in the Value sequentialy ''' assert r <= 255 and r >= 0 assert g <= 255 and g >= 0 assert b <= 255 and b >= 0 r=format(r,'x').zfill(2) g=format(g,'x').zfill(2) b=format(b,'x').zfill(2) hex_string='#%s%s%s'%(r,g,b) return hex_string def Hexrgb(dec): ''' hex to rgb converter Arguments: dec = hexadecimal color to convert retuns a string of rgb color. ''' assert dec == str(dec) if dec.startswith('#'): dec = dec[1:] r=int(dec[0:2],base=16) g=int(dec[2:4],base=16) b=int(dec[4:6],base=16) color=(r,g,b) return color def hsvRgb(hue,sat,val): ''' converts hue,saturation and value passed in to rgb ''' assert 0 <= hue <= 360 assert 0 <= sat <= 100 assert 0 <= val <= 100 sat /= 100 val /= 100 chroma = val * sat h = hue/60 x = chroma *(1-(h%2-1)) if 0 <= h <= 1: R1,G1,B1 = (chroma,x,0) elif 1 <= h <= 2: R1,G1,B1 = (x,chroma,0) elif 2 <= h <= 3: R1,G1,B1 = (0,chroma,x) elif 3 <= h <= 4: R1,G1,B1 = (0,x,chroma) elif 4 <= h <= 5: R1,G1,B1 = (x,0,chroma) elif 5 <= h <= 6: R1,G1,B1 = (chroma,0,x) else: R1,G1,B1 = (0,0,0) m = val-chroma R,G,B = ((R1+m)*255,(G1+m)*255,(B1+m)*255) if R > 255: R=R % 255 elif G > 255: G=G%255 elif B > 255: B=B%255 return floor(R),floor(G),floor(B) def rgbHsv(red,green,blue): r =red/255 g = green/255 b = blue/255 cmax = max(r,g,b) cmin = min(r,g,b) delta = cmax - cmin if cmax == cmin: hue = 0 elif cmax == r: hue = 60*((g-b)/delta )%360 elif cmax == g: hue = 60*((b-r)/delta + 2) elif cmax == b: hue = 60*((r-g)/delta + 4) if cmax == 0: sat = 0 else: sat = delta/cmax val = cmax sat *= 100 val *= 100 return round(hue,2),round(sat,2),round(val,2) def hslRgb(hue,sat,lum): assert 0 <= hue <= 360 assert 0 <= sat <= 100 assert 0 <= lum <= 100 sat /= 100 lum /= 100 chroma = (1-(2*lum -1)) * sat h = hue/60 x = chroma *(1-(h%2-1)) if 0 <= hue <= 60: R1,G1,B1 = (chroma,x,0) elif 60 <= hue <= 120: R1,G1,B1 = (x,chroma,0) elif 120 <= hue <=180: R1,G1,B1 = (0,chroma,x) elif 180 <= hue <= 240: R1,G1,B1 = (0,x,chroma) elif 240 <= hue <= 300: R1,G1,B1 = (x,0,chroma) elif 300 <= hue <= 360: R1,G1,B1 = (chroma,0,x) else: R1,G1,B1 = (0,0,0) m = lum-chroma/2 R,G,B = ((R1+m)*255,(G1+m)*255,(B1+m)*255) return floor(R),floor(G),floor(B) def rgbHsl(red,green,blue): r =round(red/255,2) g = round(green/255,2) b = round(blue/255,2) cmax = max(r,g,b) cmin = min(r,g,b) delta = round(cmax - cmin,2) if delta == 0 : hue = 0 elif cmax == r: hue = (g-b)/delta % 6 elif cmax == g: hue = (b-r)/delta + 2 elif cmax == b: hue = (r-g)/delta + 4 hue *= 60 lum = (cmax + cmin)/2 if delta == 0: sat = 0 elif lum <= 0.5: sat = delta/(cmax+cmin) else: sat = delta/(2-cmax-cmin) return round(hue,2),round(sat,2),round(lum,2) def rgbCmyk(red,green,blue): ''' converts rgb to cmyk arguments range from 0 - 255 values returned range from 0-100% ''' r = red/255 g = green/255 b = blue/255 k = 1-max(r,g,b) c = (1-r-k)/(1-k)*100 m = (1-g-k)/(1-k)*100 y = (1-b-k)/(1-k)*100 k *= 100 return floor(c),floor(m),floor(y),floor(k) def cmykRgb(c,m,y,k): ''' converts cmyk to rgb all aurguments range from 0 to 100% ''' assert 0 <= c <= 100 assert 0 <= m <= 100 assert 0 <= y <= 100 assert 0 <= k <= 100 c /=100 m /= 100 y /= 100 k /= 100 red = 255*(1-c)*(1-k) green =255*(1-m)*(1-k) blue = 255*(1-y) * (1-k) return floor(red),floor(green),floor(blue) def toColor(color :str): ''' Checks color passed in in r,g,b or hex and returns the color range of the value passsed in. ''' hexa = re.compile(r'#?([a-f]|\d){6}',re.I) regb =re.compile(r'(\d+)(,\d+){2}') if hexa.match(color) or regb.match(color): if hexa.match(color): form = Hexrgb(color) red,green,blue = form elif regb.match(color): red,green,blue = tuple(color.split(',')) else: print('Sorry no matching color found use Either RGB of hexadecimal colors ') red = int(red) green = int(green) blue = int(blue) hue = rgbHsl(red,green,blue)[0] bright = rgbHsl(red,green,blue)[2] hue =floor(hue) rd = list(range(0,11)) rd.extend(range(355,361)) if red == 255 and green == 255 and blue == 255: return 'white' elif red == 0 and green == 0 and blue == 0: return 'black' elif red == blue == green: return 'grey' elif red in range(50,256) and green in range(0,195) and blue in range(0,195) and hue in rd: return 'red' elif red in range(181,256) and green in range(166,256) and blue in range(0,256) and hue in range(51,61): return 'yellow' elif red in range(0,179) and green in range(72,256) and blue in range(0,176) and hue in range(81,141): return 'green' elif red in range(0,156) and green in range(79,256) and blue in range(79,256) and hue in range(170,201): return 'cyan' elif red in range(0,43) and green in range(0,83) and blue in range(102,256) and hue in range(221,241): return 'blue' elif red in range(93,256) and green in range(0,160) and blue in range(84,256) and hue in range(281,321): return 'magenta' elif red in range(86,256) and green in range(0,209) and blue in range(25,220) and hue in range(331,346): return 'pink' elif red in range(109,256) and green in range(53,153) and blue in range(0,123) and hue in range(11,21): return 'red-orange' elif red in range(61,256) and green in range(43,246) and blue in range(0,239) and hue in range(21,41): return 'orange or brown' elif red in range(145,256) and green in range(113,249) and blue in range(0,227) and hue in range(41,51): return 'orange-yellow' elif red in range(75,224) and green in range(83,256) and blue in range(0,131) and hue in range(61,81): return 'orange-green' elif red in range(0,179) and green in range(36,256) and blue in range(32,213) and hue in range(141,170): return 'green-cyan' elif red in range(0,240) and green in range(33,248) and blue in range(71,255) and hue in range(201,221): return 'cyan-blue' elif red in range(42,192) and green in range(0,149) and blue in range(150,228) and hue in range(241,281): return 'blue-magenta' elif red in range(97,256) and green in range(0,240) and blue in range(81,246) and hue in range(321,330): return 'magenta-pink' elif red in range(101,256) and green in range(0,194) and blue in range(11,205) and hue in range(346,356): return 'pink-red' else: if 0.0 <= bright <= 0.15: return 'black' elif 0.16 <= bright <= 0.84: return 'grey' elif 0.85 <= bright <= 1.0: return 'white' if __name__ == "__main__": ''' Tweek with the values in here to see if it works ''' color2='#2e76e3' color = rgbHex(45,198,154) print('rgb{col} to hex => {}'.format(color,col=(45,198,154))) print('hex {hex} to rgb => {col}'.format(hex=color2,col=Hexrgb(color2))) print('rgb{col} color range is {ran}'.format(col=(45,198,154),ran=toColor('45,198,154'))) print('{hex} color range is {ran}'.format(hex=color2,ran=toColor(color2))) print('rgb{col} to cmyk is {}'.format(rgbCmyk(45,198,54),col=(45,198,154))) print('cmyk{col} to rgb is {val}'.format(col=(23,45,12,14),val=cmykRgb(23,45,12,14))) print('hsl{col} to rgb is {val}'.format(col=(184,63,47),val=hslRgb(184,63,47))) print('rgb{col} to hsl is {val}'.format(col=(45,198,154),val=rgbHsl(45,198,154))) print('hsv{col} to rgb is {val}'.format(col=(184,63,47),val=hsvRgb(184,63,47))) print('rgb{col} to hsv is {val}'.format(col=(45,198,154),val=rgbHsv(45,198,154)))

colorspace_converter