RGB⇔HEXカラー変換ツール

共有リンク

はじめに

RGB ↔ HEX Color Converter — Convert between RGB channels and #RRGGBB with a live preview. Enter Convert, R, G, B to get an instant, accurate result.

計算式

RGB → Hex: each channel (0-255) converted to a 2-digit hex pair. Hex → RGB: each hex pair parsed back to a 0-255 decimal value.

ステップごとの説明

Enter the Convert.
Enter the R.
Enter the G.
Enter the B.
Click Calculate to see your result instantly.

実例

Example: With Convert = rgb_to_hex, R = 255, G = 87, B = 51, the RGB ↔ HEX Color Converter gives Hex: #FF5733.

よくある質問

What range are RGB values in?

Each of red, green, and blue ranges from 0 to 255.

Does the hex code need a # prefix?

You can include or omit the leading # — both are accepted.

What inputs does the RGB ↔ HEX Color Converter need?

You'll need to provide: Convert, R, G, B. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the RGB ↔ HEX Color Converter?

The RGB ↔ HEX Color Converter applies the formula exactly as calculated — RGB → Hex: each channel (0-255) converted to a 2-digit hex pair. Hex → RGB: each hex pair parsed back to a 0-255 decimal value. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the RGB ↔ HEX Color Converter free to use?

Yes, the RGB ↔ HEX Color Converter is completely free, requires no signup, and runs instantly in your browser.