RGB to HEX Converter

The RGB to HEX Converter translates a color between the two formats you are most likely to meet in web and screen work: an RGB triplet such as $(255,\ 165,\ 0)$ and a hexadecimal code such as $\#\mathrm{ffa500}$. Pick the direction you need, enter what you have, and the tool fills in the other side instantly.

This is the tool you reach for whenever you have a color in one notation and need it in the other — a web developer pasting a brand hex code into a stylesheet, a designer pulling RGB values out of a design tool to share as a code, or a student checking how the two notations relate. In HEX to RGB mode you can also switch on shorthand hex codes like $\#\mathrm{FAB}$, which CSS expands to $\#\mathrm{FFAABB}$. If your project calls for more formats at once, the Color Converter shows hex, RGB, HSL, HWB, CMYK, and color names side by side from one input.

Both notations describe the same red, green, and blue intensities in the standard sRGB color model. A channel takes one of $256$ possible levels, from $0$ (off) to $255$ (full), and that range fits exactly into two hex digits.

RGB to hex

Each $0\text{–}255$ channel becomes two hex digits using $V = 16h_1 + h_0$, so $255$ is $\mathrm{ff}$, $165$ is $\mathrm{a5}$, and $0$ is $\mathrm{00}$. The three pairs are joined under one $\#$. Because each pair is exactly 8 bits, the whole code is one 24-bit number: $H = R\cdot 65536 + G\cdot 256 + B$.

Hex to RGB

In practice you do not need the floor division — just read the code in pairs. For $\#\mathrm{ffa500}$, the pairs are $\mathrm{ff}$, $\mathrm{a5}$, and $\mathrm{00}$, which are $255$, $165$, and $0$.

Shorthand hex codes

A 3-digit code duplicates each digit: $\mathrm{F} \to \mathrm{FF}$, $\mathrm{A} \to \mathrm{AA}$, $\mathrm{B} \to \mathrm{BB}$. This is the official shorthand defined by the CSS Color Module Level 4, where hex codes take 3, 4, 6, or 8 digits and letter case does not matter. This tool accepts the 3- and 6-digit opaque forms; the 4- and 8-digit forms that add transparency are not supported here.