RGB to Hex
Convert RGB color values to HEX codes instantly with a live color preview. Supports standard RGB (0–255), RGBA with alpha/opacity, percentage-based RGB, and 3-digit hex shorthand, with one-click copy and palette export to CSS, SCSS, or JSON.
About RGB and HEX Colors
RGB and HEX are two ways of describing the same digital colors. RGB defines a color using three channels — red, green, and blue — each ranging from 0 to 255, based on how screens mix light to produce color. HEX represents those exact same values as a six-digit hexadecimal code like #FF5733, where each pair of characters stands for one channel. HEX is the compact form most commonly used in CSS and HTML, while RGB is often easier to read and adjust. Converting between them is routine in web design and development. We built this tool to make that conversion instant and visual, computed entirely in your browser.
How to Convert RGB to HEX
It's instant. Enter your three RGB values — red, green, and blue — each between 0 and 255. The tool converts each channel into its two-digit hexadecimal equivalent and combines them into a single #RRGGBB code, updating in real time. A live swatch shows the exact color as you type. For example, rgb(255, 87, 51) becomes #FF5733. Click Copy to grab the hex code for your CSS or design file. Every conversion happens in your browser, so nothing you enter is sent to a server.
Common Mistakes to Avoid
❌ Using RGB values outside the 0–255 range
✓ Solution:
values like 300 or -10 are invalid.
❌ Forgetting the # in the hex code
✓ Solution:
In CSS and HTML, hex colors start with a # (like #FF5733). Leaving it off can make the code invalid in your stylesheet. Include the hash when you paste the value into your project.
❌ Mixing up the channel order
✓ Solution:
Hex codes read as red, green, then blue — #RRGGBB. Swapping the order gives a completely different color. Double-check that your values map to the right channels before using the result.
❌ Confusing RGB with RGBA
✓ Solution:
RGB has no transparency; RGBA adds a fourth alpha value for opacity. A standard six-digit hex code can't hold alpha. If you need transparency, use an eight-digit hex or an RGBA value instead.
❌ Rounding channel values by hand
✓ Solution:
Manually converting each number to hex invites small errors that shift the color slightly. Let the tool do the conversion so every channel maps to the exact correct two-digit hex pair.
Frequently Asked Questions
Convert each of the three RGB values (0–255) into a two-digit hexadecimal number, then join them in red-green-blue order with a # in front. For example, rgb(255, 87, 51) becomes #FF5733. This tool does the conversion instantly as you enter your values.
A hex code like #FF5733 is a six-digit representation of a color, split into three pairs for red, green, and blue. Each pair is a hexadecimal value from 00 to FF, matching the 0–255 range in RGB. It's the compact color format used throughout CSS and HTML.
It's #FF5733. Red 255 becomes FF, green 87 becomes 57, and blue 51 becomes 33, giving the combined code #FF5733. The live preview shows the exact orange-red shade this produces.
Yes — the two are fully interchangeable. HEX and RGB describe the same colors in different notation, so any value converts cleanly both ways. This tool focuses on RGB to HEX, giving you the code most commonly used in stylesheets.
No. All conversion runs locally in your browser — nothing you enter is uploaded, logged, or stored on any server. That makes the tool fast, private, and always available for your design and development work.
RGB to HEX Converter — Free Online Tool to Convert RGB Color Values to HEX Codes (Live Preview)
An RGB to HEX converter that turns color values into the hex codes used across the web. Enter your red, green, and blue values — each from 0 to 255 — and instantly get the matching hexadecimal color code in #RRGGBB format, alongside a live preview of the color itself. RGB describes color by mixing three channels of light, while HEX packs those same values into a compact six-digit code that CSS, HTML, and design software understand. This tool bridges the two: type rgb(255, 87, 51) and get #FF5733 in real time, ready to copy with a single click. Seeing the color as you adjust the values makes it easy to dial in exactly the shade you want. Because every conversion runs locally in your browser, nothing you enter is uploaded, logged, or stored. It's a fast, dependable utility for web designers, front-end developers, and anyone matching, picking, or converting colors for websites, apps, and graphics.
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