# sRGB to LCH Converter

Convert sRGB color values to LCH for color management with alpha channel support

> Canonical page: https://elysiatools.com/en/tools/srgb-to-lch-converter

- **Category:** Design

- **Keywords:** srgb, lch, color, converter, screen, cielch, color space, lightness, chroma, hue, alpha, transparency

## Overview

The sRGB to LCH Converter allows you to accurately transform sRGB color values into the perceptually uniform LCH color space, ensuring consistent color management across digital and print workflows while providing flexible options for handling alpha transparency.

## Inputs

- **sRGB Input** (textarea): Enter sRGB values, one per line: srgb(255,0,128) srgba(255,0,128,0.5) rgb(255,0,128) rgba(255,0,128,0.5) 255,0,128 255,0,128,0.5 R:255 G:0 B:128 R:255 G:0 B:128 A:0.5 #FF0080 #FF008080 ff0080 ff008080
- **Output Format** (select)
- **Alpha Channel Handling** (select)
- **Custom Background Color** (color): Custom background color for alpha compositing (used when Custom Background is selected)

## When to use

- When you need to transition from device-dependent sRGB colors to a perceptually uniform color space like LCH.
- When working with semi-transparent colors that require consistent compositing against a specific background color.
- When preparing color palettes for modern CSS applications that leverage the LCH color model for better accessibility and design consistency.

## How it works

- Input your sRGB values in various formats, including hex codes, rgb() functions, or raw numeric triplets.
- Select your preferred output format, such as standard CSS syntax or labeled LCH values.
- Choose an alpha channel handling method to composite transparency against a white, black, or custom background color.
- Click convert to generate the precise LCH color coordinates based on your specified settings.

## Use cases

- Standardizing color palettes for web design to ensure consistent perceived brightness across different hues.
- Converting legacy sRGB design assets into modern CSS LCH color definitions for improved accessibility.
- Calculating accurate color values for transparent UI elements by compositing them against specific brand background colors.

## Frequently asked questions

### Why convert sRGB to LCH?

LCH is a perceptually uniform color space, meaning it aligns better with how the human eye perceives lightness, chroma, and hue compared to sRGB.

### How does the tool handle alpha channels?

The tool composites the transparent color against a chosen background (white, black, or custom) to calculate a solid LCH equivalent.

### Can I input hex codes?

Yes, the tool accepts hex codes, rgb() strings, and raw numeric values for sRGB inputs.

### What is the difference between the 'lch' and 'css' output formats?

The 'lch' format uses comma-separated values, while the 'css' format uses space-separated values, which is the modern standard for CSS color functions.

### Is the conversion accurate for print?

LCH is excellent for color management, but always verify your final output against your specific printer's color profile or gamut limitations.

## Related tools

- [Adobe RGB to CMYK Converter](https://elysiatools.com/en/tools/adobe-rgb-to-cmyk-converter): Convert Adobe RGB color values to CMYK format for printing with alpha channel support
- [Adobe RGB to HEX Converter](https://elysiatools.com/en/tools/adobe-rgb-to-hex-converter): Convert Adobe RGB color values to HEX format for web design
- [Adobe RGB to HSL Converter](https://elysiatools.com/en/tools/adobe-rgb-to-hsl-converter): Convert Adobe RGB color values to HSL format for design work
- [Adobe RGB to HSV Converter](https://elysiatools.com/en/tools/adobe-rgb-to-hsv-converter): Convert Adobe RGB color values to HSV/HSB for color manipulation
- [Adobe RGB to LAB Converter](https://elysiatools.com/en/tools/adobe-rgb-to-lab-converter): Convert Adobe RGB color values to LAB color space for color analysis with alpha channel support
- [Adobe RGB to LCH Converter](https://elysiatools.com/en/tools/adobe-rgb-to-lch-converter): Convert Adobe RGB color values to LCH color space for intuitive color manipulation with alpha channel support
- [Adobe RGB to RGB Converter](https://elysiatools.com/en/tools/adobe-rgb-to-rgb-converter): Convert Adobe RGB color values to sRGB format for web display
- [Adobe RGB to sRGB Converter](https://elysiatools.com/en/tools/adobe-rgb-to-srgb-converter): Convert Adobe RGB color values to sRGB format for web display

## Samples

- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion
- [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion