# RGB colour values

RGB colour values refer to the numeric codes used to define a specific colour in a digital image or on a digital display.

• Colour values are numbers and/or characters used by colour models to represent and store colour information in a format recognizable to both computers and humans.
• Each colour within a colour model is assigned a unique colour value.
• RGB colour values (codes) are represented by decimal triplets (base 10) or hexadecimal triplets (base 16).
###### RGB decimal values
• In decimal notation, an RGB triplet is used to represent the values of red, then green, then blue. A range of decimal numbers from 0 to 255 can be selected for each value.
• Red = 255, 00, 00
• Yellow = 255, 255, 0
• Green = 00, 255, 00
• Cyan = 00, 255, 255
• Blue = 00, 00, 255
• Magenta = 255, 00, 255
• In decimal notation, an RGB triplet represents the values of red, green, and blue, in that order. Each value can range from 0 to 255.
• The hash symbol (#) is used to indicate hexadecimal notation.
• Red = #FF0000
• Yellow = #FFFF00
• Green = #00FF00
• Cyan = #00FFFF
• Blue = #0000FF
• Magenta = #FF00FF
• The sequence of hexadecimal values between 1 and 16 = 0,1,2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F.
• The sequence of hexadecimal values between 17 and 32 = 10,11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E and 1F.
###### References
• RGB colour values refer to the numeric codes used to define a specific colour in a digital image or on a digital display.
• Colour values are numbers and/or characters used by colour models to represent and store colour information in a format recognizable to both computers and humans.
• Each colour within a colour model is assigned a unique colour value.
• The notation for RGB colour values (codes) are decimal triplets (base 10) or hexadecimal triplets (base 16).
• RGB decimal and hexadecimal triplets look like this:
• R = 255, G = 128, B = 0 (255,128,00) is the decimal notation for orange.
• #FF8000 is the hexadecimal notation for orange.