RGB (Red, Green, and Blue) refers to a system for representing the colors to be used on a computer display.
RGB colors are Additive
- RGB colors are also known as “additive color”, because the colors are being added together to achieve further colors or until the outcome is white.
- This is because our eyes receive no reflected light and they perceive the color to be black.
HTML color names
Converting RGB to hexadecimal
- RGB values are usually given in the .
- This number divided by sixteen (integer division; ignoring any remainder) gives us the first hexadecimal digit (between 0 and F, where the letters A to F represent the numbers ten to fifteen).
The RGB color is a combination of Red, Green and Blue colors:
(R, G, B)
The red, green and blue use 8 bits each, which have integer values from 0 to 255.
So the number of colors that can be generated is:
256×256×256 = 16777216 = 100000016
Hex color code
Hex color code is a 6 digits hexadecimal (base 16) number:
RRGGBB16
Convert red color (255,0,0) to hex color code: R = 25510 = FF16 G = 010 = 0016 B = 010 = 0016 So the hex color code is: Hex = FF0000 Example #2
Convert gold color (255,215,0) to hex color code:
R = 25510 = FF16
G = 21510 = D716
B = 010 = 0016
So the hex color code is:
Hex = FFD700
(R, G, B)
The red, green and blue use 8 bits each, which have integer values from 0 to 255.
So the number of colors that can be generated is:
256×256×256 = 16777216 = 100000016
Hex color code
Hex color code is a 6 digits hexadecimal (base 16) number:
RRGGBB16
- The 2 left digits represent the red color.
- The 2 middle digits represent the green color.
- The 2 right digits represent the blue color.
Convert red color (255,0,0) to hex color code: R = 25510 = FF16 G = 010 = 0016 B = 010 = 0016 So the hex color code is: Hex = FF0000 Example #2
Convert gold color (255,215,0) to hex color code:
R = 25510 = FF16
G = 21510 = D716
B = 010 = 0016
So the hex color code is:
Hex = FFD700