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Hex to RGB / RGBA Converter

Convert Hex color codes to RGB, RGBA, HSL, HSLA, and CMYK values instantly. Includes color preview, opacity adjustment, and nearest named color detection.

Use Hex to RGB / RGBA Converter to get instant results without uploads or sign-ups. Everything runs securely in your browser for fast, reliable output.

Your results will appear here.

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About this tool

Color conversion is a daily task for web designers and developers. While Hex codes (#FF0000) are standard for web design, sometimes you need RGB values for calculations, HSL for programmatic color manipulation, or CMYK for print work.

This Hex to RGB Converter handles 3-digit hex codes (#F00), 6-digit hex codes (#FF0000), and even 8-digit hex codes with alpha channels (#FF000080). It provides bidirectional conversion - typing in the RGB boxes updates the Hex, and vice-versa.

We also calculate the "Luminance" of the color to tell you if white or black text would be more readable on top of it, aiding in accessibility compliance (WCAG).

Usage examples

Standard Red

Hex to RGB

#FF0000 → rgb(255, 0, 0)

Semi-Transparent Blue

Hex with Alpha

#0000FF80 → rgba(0, 0, 255, 0.5)

Short Hex

Expansion

#0F0 → #00FF00 → rgb(0, 255, 0)

How to use

  1. Enter a Hex code (e.g., #FF5733) OR RGB values in the input fields.
  2. The tool automatically converts the color to all other formats.
  3. Use the slider to adjust the Alpha (Opacity) value.
  4. Click the copy icon next to any format to use it in your CSS/code.
  5. View the live preview box to see the exact color rendered.

Benefits

  • Supports Hex, RGB, RGBA, HSL, HSLA, and CMYK
  • Real-time conversion as you type
  • Handles short (#ABC) and long (#AABBCC) Hex codes
  • Adjustable Opacity / Alpha channel
  • Suggests best text contrast color (White/Black)
  • Live visual preview
  • One-click CSS code copying
  • Completely client-side and fast

FAQs

What is the difference between Hex and RGB?

Hex (Hexadecimal) is a base-16 representation primarily used in HTML/CSS. RGB (Red, Green, Blue) uses decimal numbers (0-255). They represent the exact same color, just written differently for computers vs. humans.

How do I use RGBA?

RGBA stands for Red, Green, Blue, Alpha. The Alpha value controls transparency, ranging from 0 (invisible) to 1 (fully opaque). This is useful in CSS for creating see-through backgrounds.

What is HSL?

HSL stands for Hue, Saturation, and Lightness. It is often more intuitive for designers to adjust because you can pick a hue (color) and then just make it lighter or duller without calculating red/green/blue ratios.

Why are hex codes 6 characters long?

Hex codes use 6 characters (or 3 shorthand) representing RGB values in hexadecimal. Each color channel (Red, Green, Blue) gets 2 hex digits (00-FF), which equals 0-255 in decimal. Example: #FF5733 means Red=255 (FF), Green=87 (57), Blue=51 (33). Some colors use 8 digits to include alpha transparency (#FF5733AA).

How do I pick colors that work well together?

Use color theory principles: (1) Complementary colors (opposite on color wheel) create high contrast. (2) Analogous colors (adjacent on wheel) create harmony. (3) Triadic colors (evenly spaced) create vibrant palettes. (4) Monochromatic (same hue, varying saturation/lightness) creates cohesive designs. Use HSL to adjust colors systematically.

What is web-safe color?

Web-safe colors (216 total) display consistently across all browsers and devices. They use combinations of 00, 33, 66, 99, CC, FF for each RGB channel. Example: #FF6600. While important for old browsers, modern displays render millions of colors accurately, so web-safe colors are less critical now but still useful for maximum compatibility.

How do I convert RGB back to Hex?

Convert each RGB value (0-255) to hexadecimal (00-FF). For example, RGB(255, 87, 51): Red 255 = FF, Green 87 = 57, Blue 51 = 33, result is #FF5733. Most design tools and our converter handle this automatically. Quick manual method: use a calculator with hex conversion or online converter.

What is the difference between RGB and CMYK?

RGB (Red, Green, Blue) is additive color for screens - combining all colors makes white. CMYK (Cyan, Magenta, Yellow, Black) is subtractive color for printing - combining all makes black. Use RGB for web/digital, CMYK for print. Converting between them can cause color shifts because screens and printers have different color gamuts (range of displayable colors).

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