ตัวแปลง RGB เป็น HEX
Convert RGB color values to HEX codes instantly. Essential for web design, CSS, and graphic design.
วิธีใช้เครื่องคิดเลขนี้
- ป้อนRed (0-255)
- ป้อนGreen (0-255)
- ป้อนBlue (0-255)
- คลิกปุ่มคำนวณ
- อ่านผลลัพธ์ที่แสดงด้านล่างเครื่องคิดเลข
RGB to HEX Conversion
RGB (Red, Green, Blue) and HEX are two ways to represent the same color. Each RGB channel (0–255) is converted to a 2-digit hexadecimal value. HEX = # + (R in hex) + (G in hex) + (B in hex).
Common color examples:
- White: rgb(255,255,255) = #FFFFFF
- Black: rgb(0,0,0) = #000000
- Red: rgb(255,0,0) = #FF0000
- Blue: rgb(0,0,255) = #0000FF
- Orange: rgb(255,165,0) = #FFA500
How to Convert RGB to HEX
To manually convert: take each channel value, divide by 16 to get the first digit, take the remainder as the second digit. For example, 255 ÷ 16 = 15 remainder 15 → FF. 128 ÷ 16 = 8 remainder 0 → 80. Then combine: #FF8000.
Web Design Usage
CSS accepts both rgb(R, G, B) and #RRGGBB formats. HEX codes are the most common in design tools (Figma, Photoshop, Sketch) and CSS stylesheets. RGB values are useful for programmatic color manipulation and opacity (rgba adds a 4th channel for alpha transparency).
อัปเดตล่าสุด: March 2026
Frequently Asked Questions
How do I convert RGB to HEX?
Convert each channel (0–255) to 2-digit hex and concatenate. Example: rgb(255, 99, 71) → #FF6347 (Tomato red).
What is the HEX code for white?
White is #FFFFFF (rgb 255, 255, 255).
Can I use RGB in CSS?
Yes. CSS accepts both formats: color: rgb(255, 128, 0) and color: #FF8000 produce the same result.