RGB to HEX Converter
Free, accurate, and instant conversion. Preview your color in real-time on digital and print mockups.
Source Input RGB
/* CSS Variable */ --color-primary: #000000; /* Standard */ color: #000000; background-color: #000000;
From Screen to Code: RGB to Hex Conversion
Designers live in RGB. Whether you are tweaking levels in Photoshop, painting in Procreate, or adjusting lighting in Blender, you are manipulating channels of Red, Green, and Blue light (0-255).
Developers, however, build in Hex. This converter is the bridge that turns your visual design values into the compact, browser-ready code snippets (#RRGGBB) needed for CSS stylesheets.
The Source (RGB)
Native to monitors. Three channels (Red, Green, Blue) mixing light from 0 (Dark) to 255 (Max Brightness).
The Math
We divide each decimal value by 16, converting the remainder into Base-16 characters (0-9, A-F).
The Code (Hex)
A 6-digit string representing the intensities. The standard format for HTML, CSS, and SVG.
Why 255? The 8-Bit Explanation
You might wonder why the scale stops at 255. It's not arbitrary—it's binary.
The Power of 2
Computers store color in "bytes".
1 Byte = 8 Bits (zeros or ones).
28 = 256 combinations.
Since we start counting at 0, the maximum value is 255.
Pro Tips for RGB to Hex
- • Shorthand works when pairs match: #FF00AA → #F0A (only if each pair is identical).
- • Use uppercase Hex (#FF5733) for readability—it matches design tool exports.
- • For transparency, append alpha as the last pair: #FF573380 = 50% opacity.
- • Grey colors always have equal R, G, B values: rgb(128,128,128) = #808080.
Common RGB to Hex Cheat Sheet
| Color Name | RGB Value | Hex Code |
|---|---|---|
| Black | rgb(0, 0, 0) | #000000 |
| White | rgb(255, 255, 255) | #FFFFFF |
| Pure Red | rgb(255, 0, 0) | #FF0000 |
| Pure Green | rgb(0, 255, 0) | #00FF00 |
| Pure Blue | rgb(0, 0, 255) | #0000FF |
Who is This Tool For?
Graphic Designers
Convert colors from Photoshop, Illustrator, or Procreate to web-ready Hex codes for developers.
Frontend Developers
Get compact Hex codes for CSS stylesheets, Tailwind configs, or design system tokens.
UI/UX Designers
Translate Figma or Sketch RGB values into Hex for design handoffs and documentation.
Email Marketers
Hex codes are required for email HTML templates where RGB syntax isn't always supported.
Frequently Asked Questions
How do I convert RGB to Hex manually?
Take the Red value (e.g., 255). Divide by 16 (Result 15, Remainder 15). Convert these to Hex (15=F). So 255 becomes FF. Repeat for Green and Blue. Combine them with a '#' prefix.
What is the range of RGB values?
Each channel (Red, Green, Blue) must be an integer between 0 and 255. 0 is no light, 255 is maximum light.
Why do I need to convert RGB to Hex?
While CSS supports rgb(), Hex codes are the industry standard because they are shorter (7 characters vs up to 16) and easier to copy-paste between design tools like Figma and your code editor.
Can I convert RGBA to Hex?
Yes, but standard Hex (6-digit) ignores transparency. You need an 8-digit Hex code (#RRGGBBAA) to support alpha, which is supported in all modern browsers.
What represents pure Black and White?
Black is rgb(0,0,0) -> #000000. White is rgb(255,255,255) -> #FFFFFF.
Is RGB better for screens?
Yes. RGB is an 'additive' color model designed for screens that emit light. Adding 100% Red, Green, and Blue creates pure White light.
Why are there only 255 values?
Computers typically use 8 bits (1 byte) to store each color channel. 2^8 equals 256 possible values (0 counting as the first one, up to 255).
Does RGB support neon colors?
Yes! Since RGB uses emitted light, it can create extremely bright, saturated neon colors that are impossible to print on paper (CMYK).
How do grey colors work in RGB?
If all three values are equal (e.g., 128, 128, 128), the result is a neutral shade of grey.
Is this tool compatible with CSS3?
Yes, the output Hex codes are fully compatible with CSS1, CSS2, and CSS3 standards.
Can I use 3-digit shorthand Hex codes?
Yes, when each pair of digits is the same (like #FF0000), you can shorten it to #F00. Browsers expand #F00 to #FF0000 automatically. This saves characters in your CSS.
How do I find the RGB values in design software?
In Photoshop, use the Color Picker or Info panel. In Figma, click any color and view the RGB values in the color panel. In Illustrator, check the Color panel or use the Eyedropper tool.