What is HSL and when should I use it?

HSL describes a colour as hue, saturation, and lightness. It is far easier to work with than hex when you need a consistent palette, because you can hold hue and saturation steady and adjust only lightness to build tints and shades.

How do I convert a hex colour to RGB manually?

Split the six digits into three pairs and read each pair as a base-16 number. In #1E90FF, 1E is 30, 90 is 144, and FF is 255, giving rgb(30, 144, 255).

What is an 8-digit hex colour?

The final two digits are the alpha channel, controlling opacity from 00 for fully transparent to FF for fully opaque. It is supported in every modern browser and is a compact alternative to rgba().

How do I check whether my colours meet accessibility contrast rules?

WCAG AA requires a contrast ratio of at least 4.5:1 for body text and 3:1 for large text. Convert both colours to RGB first, since contrast is calculated from relative luminance rather than from the hex values directly.

Updated for 2026 • 100% Free Online Calculator

Free Color Code Converter (HEX, RGB, HSL)

A color code converter translates hexadecimal web colors (#3b82f6) into CSS RGB and HSL values with live color swatches.

Enter HEX Color Code

RGB Formatrgb(59, 130, 246)

HSL Formathsl(217, 91%, 60%)

CMYK Formatcmyk(76%, 47%, 0%, 4%)

Step by step

How to Use Free Color Code Converter (HEX, RGB, HSL) in 3 Simple Steps

1
Pick or Type Color
Select a color from the visual palette or paste a HEX string.
2
Inspect Output
Review equivalent RGB and HSL formats.
3
Copy Color Code
Copy the CSS string for your stylesheet.

Real-World Use Cases & Problem Solving

Why Use Free Color Code Converter (HEX, RGB, HSL)? Common Problems Solved

Here is exactly why creators, developers, and businesses use this tool to overcome real-world workflow bottlenecks.

Best For: Front-End Developers & UI Designers

The Problem: Inaccessible Fixed Pixel Typography on Web

Using hardcoded px units prevents visually impaired users from scaling website text according to their browser accessibility settings.

The Solution: Relative Scalable REM Units

Convert fixed pixel measurements into relative rem units that scale harmoniously across all devices and accessibility zoom levels.

Best For: System Admins & Cloud Engineers

The Problem: Confusion Over Cloud Server & Storage Limits

Translating bandwidth invoices and attachment sizes between Megabytes and Gigabytes causes unexpected cloud overage fees.

The Solution: Instant Precise Data Storage Calculation

Convert any byte measurement to KB, MB, GB, and TB instantly with decimal and binary accuracy.

When to Use Different CSS Color Formats

HEX Codes: Compact 6-character format standard for web design mockups and branding guides.
RGB / RGBA: Essential when adjusting opacity and alpha channel transparencies.
HSL (Hue, Saturation, Lightness): Intuitive format for creating dynamic color palettes and hover states.

Common Questions

Frequently Asked Questions

HEX is a base-16 representation (e.g. #FFFFFF) of the red, green, and blue light channels (RGB 255, 255, 255).

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Why browser-based conversion is safer than uploading

A technical audit on cloud converter storage risks, multi-tenant server exposure, and how browser WebAssembly processes files locally.

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