Tool to convert colors to Red Green Blue (RGB RGB) with display of values, hexadecimal code, 24-bit integer etc.
Color in Red Green Blue - dCode
Tag(s) : Physics-Chemistry
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Color in Red Green Blue
RGB Triplet to Color Converter
RGB 24-bit Integer to Color Converter
Color to RGB Converter
Answers to Questions (FAQ)
What is the RGB color model? (Definition)
The RGB (Red, Green, Blue) model (also spelled RGB for Red, Green, Blue) is a color representation system based on the addition of the three primary colors of light.
Each component (R, G, B) can take a value from 0 to 255, allowing for over 16 million colors.
How to convert a color to 24bit RGB?
From the three RGB values (each component must be between 0 and 255), the integer is calculated using the formula
$$ R \times 255^2 + G \times 256^1 + B \times 256^0 \\ = R \times 65536 + G \times 256 + B $$
Computer-wise, the formula can be rewritten as: $ ( R \ll 16 ) + ( G \ll 8 ) + B $ with $ \ll $ the left-shift operator.
Example: The values are Red = 64, Green = 128, and B = 192, so the corresponding integer is $ 64 \times 65536 + 128 \times 256 + 192 = 4227264 $
— If the components are written in 8-bit binary, concatenate them in RGB order to obtain a binary integer.
Example: R = 01000000, G = 10000000, B = 11000000, RGB = 010000001000000011000000 in binary, or 4227264 in decimal.
— If the components are written in hexadecimal, combine them in RGB order.
Example: R = 0x40, G = 0x80, B = 0xC0, RGB = 0x4080c0 in hexadecimal or 4227264 in decimal
— If the components are numbers between 0 and 1, multiply them by 255 and repeat the formula above.
How to convert a hexadecimal color to RGB?
In computing, numbers between 0 and 255 are encoded with two hexadecimal digits. Therefore, RGB triplets are often written in the format #RRGGBB in RGB:
— The first two characters (RR) for the hexadecimal value of Red
— The next two for Green (GG)
— The last two for Blue (BB)
Example: Color #4CAF50, i.e. (0x4c = 76 for red, 0xaf = 175 for green, and 0x50 = 80 for blue)
What is the difference between RGB and CMYK?
RGB (Red, Green, Blue): additive model, used for screens.
CMYK (Cyan, Magenta, Yellow, Black): subtractive model, used for printing.
The transition from RGB to CMYK is not trivial because the color space is not identical (not all colors displayed on a screen can be printed).
Source code
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