Color to RGB

What is an RGB color?

An RGB color is a way of representing a color by specifying the intensity of its three primary channels: red, green and blue. Each channel is an integer between 0 and 255, where 0 means the channel is fully off and 255 means it is fully on. By mixing the three channels, over 16.7 million colors can be expressed — for example, rgb(14, 165, 233) is a sky blue made of red 14, green 165 and blue 233. RGB is called an additive color model because combining all three channels at full intensity (255, 255, 255) produces white, while combining them at zero (0, 0, 0) produces black.

The RGB model mirrors the way most displays emit light. Every pixel on a phone, monitor or TV screen is made of tiny red, green and blue sub-pixels, and the device sets the brightness of each sub-pixel according to the RGB value. This is why RGB is the native color space of the web and of CSS.

When to use RGB colors

RGB is the default color format whenever you work with screens rather than print. Common scenarios include:

• CSS styling. The rgb() and rgba() functions accept three or four numbers and are understood by every browser.
• Canvas and image processing. The Canvas API exposes pixel data as RGBA arrays, so image filters, effects and manipulations work directly on RGB values.
• Game and graphics programming. WebGL, Three.js and most graphics libraries take RGB inputs for material colors, lighting and clear colors.
• Animation and interpolation. Animating between two RGB colors is straightforward because the channels are linear.
• Accessibility tooling. Contrast checkers compute luminance from RGB values when evaluating WCAG ratios.
• Data visualisation. Chart libraries such as D3, Chart.js and ECharts accept RGB color specs for series, fills and strokes.

For print work, RGB must be converted to CMYK because printers use a subtractive model; but for anything shown on a screen, RGB is the right choice.

RGB vs HEX vs HSL

RGB, HEX and HSL all describe the same sRGB color but in different ways. RGB lists the red, green and blue channels as decimal integers (0–255). HEX encodes the same channels as hexadecimal pairs (00–FF), so rgb(14, 165, 233) and #0EA5E9 are mathematically identical. HSL describes the color by hue (0–360°), saturation (0–100%) and lightness (0–100%), which is more intuitive for designers because changing the lightness produces predictable tints and shades.

Use RGB when you need numeric channel values for calculations, animations or API calls. Use HEX when you want a compact, shareable code for CSS and design tools. Use HSL when you want to build palettes or fine-tune the perceived brightness of a color.

Common RGB colors

The table below lists frequently used colors and their RGB equivalents.

Name	RGB	HEX
Black	rgb(0, 0, 0)	#000000
White	rgb(255, 255, 255)	#FFFFFF
Red	rgb(255, 0, 0)	#FF0000
Green	rgb(0, 255, 0)	#00FF00
Blue	rgb(0, 0, 255)	#0000FF
Sky Blue	rgb(14, 165, 233)	#0EA5E9
Yellow	rgb(255, 255, 0)	#FFFF00

Note that the CSS rgba() form adds a fourth value between 0 and 1 for alpha transparency, e.g. rgba(14, 165, 233, 0.5) for 50% opacity.

How to convert a color to RGB

Converting a color with this tool takes only a second and happens entirely inside your browser. No upload, no sign-up, and no installation are required. Follow these steps:

1. Pick a color. Use the color picker, or type a 6-digit HEX code (with or without #) into the HEX field.
2. See the result. The R, G and B values update in real time, along with the rgb() string and the preview swatch.
3. Copy the RGB. Click "Copy RGB" to copy the rgb(r, g, b) string, then paste it into your CSS, code or documentation.

Because every step runs locally in your browser using JavaScript, your color choices are never uploaded to a server. This makes the conversion completely private and instant.