RGB to HEX Converter
Convert RGB and RGBA color codes to HEX format instantly. Free online color conversion tool with interactive sliders.
Red (R)
33
Green (G)
150
Blue (B)
243
Opacity (Alpha)
1
Generated HEX Code:
Color Preview:
What is an RGB to HEX converter?
RGB stands for Red, Green, and Blue, representing the intensity of light used to build a color on screen. HEX is a 6-digit hexadecimal representation of that same color, often used in HTML and CSS. This rgb to hex converter mixes your R, G, and B values (0-255 each) and instantly generates the matching HEX code — the conversion rgb hex developers reach for whenever a design spec, image picker, or JavaScript object gives them RGB numbers but the stylesheet needs a hex color code.
How to Use It
Adjust the R, G, and B sliders (or type exact 0-255 values) and the equivalent HEX code appears instantly with a copy button. Drag the opacity slider too if you need an 8-character HEX8 code that includes alpha transparency.
Example
RGB (255, 87, 51) converts to the HEX code #FF5733. Each channel is converted to a 2-digit hexadecimal value individually — 255 → FF, 87 → 57, 51 → 33 — then joined together.
Common Use Cases
- Converting a color picked from a design tool into CSS-ready HEX format.
- Matching brand colors across RGB and HEX-based design systems.
- Turning an RGB value copied from a canvas, image editor, or eyedropper tool into a hex color code.
- Building a HEX8 code with a specific opacity for CSS backgrounds and overlays.
FAQs
Why do web developers use HEX instead of RGB?
HEX codes are more compact and are the standard format for colors in HTML and CSS stylesheets, though both represent the same color values.
How do I convert RGB to a HEX color code?
Move the R, G, and B sliders (or type exact 0-255 values) above and the equivalent HEX code is generated instantly, with a one-click copy button — no manual conversion rgb hex math required.
I searched for a color code to RGB value — is this the right tool?
If you already have RGB numbers and want the HEX code, yes — this rgb to hex converter does exactly that. If you have a hex code and want the RGB value instead, use our HEX to RGB converter, which converts in the opposite direction.
Does this tool convert RGBA (with transparency) to HEX?
Yes — adjust the alpha (opacity) slider along with R, G, and B, and the tool appends the alpha channel as an extra two hex digits, producing an 8-character HEX8 code.
What's the formula behind an RGB to HEX conversion?
Each of the R, G, and B values (0-255) is converted individually to a 2-digit base-16 (hexadecimal) number, then the three pairs are joined with a # in front. For example, RGB(255, 87, 51) becomes #FF5733.