R
G
B
Screen Colour Reference
RGB Colour Chart
All 140 W3C/CSS named colours with verified RGB values, hex codes and visual swatches. Categories match the Computer Hope reference. Click any swatch to copy its value.
140
Named Colours
10
Families
W3C
CSS Standard
RGB Colour Calculator
— drag sliders or type values (0–255)
R
39%
G
58%
B
93%
Nearest named colour
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HEX
#6495ED
RGB
rgb(100, 149, 237)
CSS
color: #6495ED;
HSL
hsl(219, 79%, 66%)
About this chart: All 140 colours are the official W3C CSS named colours, verified against the Computer Hope HTML colour reference (computerhope.com/htmcolor.htm). RGB values are exact — each component ranges from 0 to 255. Categories follow the Computer Hope grouping: Reds, Pinks, Oranges, Yellows, Greens, Blues, Purples, Browns, Grays, and Blacks/Whites. The W3C badge marks the 17 original HTML4 + CSS 2.1 colours.
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What is RGB Colour? Why it is important? Complete guide for RGB Color Chart.
RGB stands for Red, Green, and Blue. It is the color model used for digital displays such as computer monitors, smartphones, televisions, tablets, LED screens, websites, and social media graphics. RGB works using light rather than ink. It is known as an additive color model because colors become brighter as more light is added. When red, green, and blue light are combined at full intensity, they create white light. When there is no light, the result is black.
By adjusting the intensity of red, green, and blue, millions of different colors can be displayed on screen. This makes RGB ideal for digital content such as websites, videos, mobile apps, presentations, social media posts, and online advertisements.
One of the biggest advantages of RGB is its ability to display bright, vivid, and highly saturated colors that are often difficult to reproduce in print. Neon colors, glowing effects, and vibrant gradients usually appear much more intense in RGB compared to CMYK.
However, RGB is designed only for screens and digital devices. When RGB artwork is sent directly for printing, the colors may appear duller or different because printers use CMYK inks instead of light. For this reason, designers often create digital content in RGB and convert it to CMYK when preparing files for print production.
Understanding RGB is important because it helps ensure that colors appear correctly across websites, mobile devices, digital advertisements, and multimedia content.
By adjusting the intensity of red, green, and blue, millions of different colors can be displayed on screen. This makes RGB ideal for digital content such as websites, videos, mobile apps, presentations, social media posts, and online advertisements.
One of the biggest advantages of RGB is its ability to display bright, vivid, and highly saturated colors that are often difficult to reproduce in print. Neon colors, glowing effects, and vibrant gradients usually appear much more intense in RGB compared to CMYK.
However, RGB is designed only for screens and digital devices. When RGB artwork is sent directly for printing, the colors may appear duller or different because printers use CMYK inks instead of light. For this reason, designers often create digital content in RGB and convert it to CMYK when preparing files for print production.
Understanding RGB is important because it helps ensure that colors appear correctly across websites, mobile devices, digital advertisements, and multimedia content.