Tips: Go to a colornumber, keep pushing on the left mouse-button and drag the mouse over the colornumbers, to see the colornumbers in the opposite color.   On your keyboard: Ctrl and '+' = Zoom-in, Ctrl and '-' = Zoom-out no. 0000 - 4096 Colortable / 4096 Colorpalette , 00 00 00 - FF FF FF , RGB, Basic Color Rules All the basic rules of the RGB: R (Red ) G ( Green) B (Blue) color system Basics of the RGB Color-systems ... The decimal number system has 10 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 The hexadecimal number system has 16 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F ( If you read decimal: A=10, B=11, C=12, D=13, E=14, F=15 ) So the 16 hexadecimal digits/letters from 0 to 15 are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F A group of 2 pairs of 16 hexadecimal digits/letters from 0 to 15 are: 00, 11, 22, 33, 44, 55, 66, 77, 88, 99, AA, BB, CC, DD, EE, FF If we combine these 2 pair of 16 digits we can make a combination of 16 x 16 = 256 different digit/letters, read decimal from : 0 - 255, and read hexadecimal from : 00 to FF For example: 00, 01, 02, 03 ,09, 0A, 1A, 1B, 2A, 2B, 3C, 4D, 55, 66, 77, 78, 79, 7A, 7B, A1, A2, B9, C9, CA, CC, D4, DE, DF, EF, F3, FA, FF, etc, (a total of 256 combinations, from 00 to FF) If we want to make colors, we have to make 3 groups of 2 pairs hexadecimal digits: from 00 00 00 up to FF FF FF The RGB-numbering-system ... (From the Black color to the Red, Green or Blue color ) KLIK HERE for the Color-chart ... The RGB-colorsystem means: R = Red, G = Green, B = Blue, the 3 primary basic colors of the RGB-colorsystem. There are 3 bacis colors: RED ( the first group of 2 digits), GREEN ( the second group of 2 digits ) and BLUE ( the third and last group of 2 digits) So: First group: 00 = RED (from 00 to FF) + second group: 00 = GREEN (from 00 to FF) + third group: 00 = BLUE (from 00 to FF) makes 3 pairs, from : 00 00 00 up to FF FF FF Each group has 256 different digit/Letter combinations, starting from: 00 00 00 up to FF FF FF So we can make 256 (1st RED group) x 256 (2nd GREEN group) x 256 (3rd BLUE group) = 16.777.216 different digit/Letter combinations. The 3 primary colors, RED, GREEN and BLUE .. For more information about primary colors, KLIK HERE ... NOTE : The RGB-color system, starts with 00 00 for the 2 not used color groups, from black to the color! Further below, you will see the CMY-color system, which starts with FF FF for the 2 not used color groups, from the color to white! RED = # FF 00 00 ( 00-FF  ,  00  ,  00 ) GREEN = # 00 FF 00 ( 00  ,  00-FF  ,  00 ) BLUE = # 00 00 FF ( 00  ,  00  ,  00-FF ) Creating the 3 secondary colors, YELLOW, MAGENTA and CYAN ... Blue + Green = Cyan       ( #00 00 FF + #00 FF 00 = #00 FF FF ) Red + Blue = Magenta       ( #FF 00 00 + #00 00 FF = #FF 00 FF ) Red + Green = Yellow       ( #FF 00 00 + #00 FF 00 = #FF FF 00 ) CMY = Cyan, Magenta, Yellow, created from RGB For more information about secondary colors, KLIK HERE ... YELLOW = RED + GREEN # FF FF 00   =   #FF 00 00   +   #00 FF 00 ( 00-FF  ,  00-FF  ,  00 ) MAGENTA = RED + BLUE # FF 00 FF   =   #FF 00 00   +   #00 00 FF ( 00-FF  ,  00  ,  00-FF ) CYAN = GREEN + BLUE # 00 FF FF   =   #00 FF 00   +   #00 00 FF ( 00  ,  00-FF  ,  00=FF ) GREY = RED + GREEN + BLUE ( all 3 have the same digits/letters ) ( 00-FF  ,  00-FF  ,  00=FF ) There are 6 tertiary colors, AZURE, VIOLET, ROSE, ORANGE, CHARTREUSE, SPRING GREEN Cyan + Blue = Azure Blue + Magenta = Violet Magenta + Red = Rose Red + Yellow = Orange Yellow + Green = Chartreuse Green + Cyan = Spring Green KLIK HERE for the Color-chart ... For more information about tertiary colors, KLIK HERE ... CMY: C = Cyan, M = Magenta, Y = Yellow, the 3 primary basic colors of the CMY-colorsystem. CYAN = # 00 FF FF ( 00-FF  ,  FF  ,  FF ) MAGENTA = # FF 00 FF ( FF  ,  00-FF  ,  FF ) YELLOW = # FF FF 00 ( FF  ,  FF  ,  00-FF ) BLUE = CYAN + MAGENTA # 00 00 FF   =   #00 FF FF   +   #FF 00 FF ( 00-FF  ,  00-FF  ,  FF ) RED = MAGENTA + YELLOW # FF 00 00   =   #FF 00 FF   +   #FF FF 00 ( FF  ,  00-FF  ,  00-FF ) GREEN = CYAN + YELLOW # 00 FF 00   =   #00 FF FF   +   #FF FF 00 ( 00-FF  ,  FF  ,  00-FF ) Summary : 3 primary colors: Red (# FF 00 00 ) Green ( # 00 FF 00 ) Blue ( # 00 00 FF ) RGB = Red, Green, Blue Grey ( # 00-FF = 00-FF = 00-FF ) = Red + Green + Blue ( All 3 the same value's ) 3 secondary colors: Cyan ( # 00 FF FF ) = Blue (# 00 00 FF ) + Green (# 00 FF 00 ) Magenta ( # FF 00 FF ) = Red ( # FF 00 00 ) + Blue ( # 00 00 FF ) Yellow ( # FF FF 00 ) = Red ( # FF 00 00 ) + Green ( # 00 FF 00 ) CMY = Cyan, Magenta, Yellow CMYK = Cyan, Magenta, Yellow, BlacK For more information about the CMYK Color-model, KLIK HERE ... Red ( # FF 00 00 ) = Magenta (# FF 00 FF ) + Yellow (# FF FF 00 ) Green ( # 00 FF 00 ) = Cyan ( # 00 FF FF ) + Yellow ( # FF FF 00 ) Blue ( # 00 00 FF ) = Cyan ( # 00 FF FF ) + Magenta ( # FF 00 FF )