https://github.com/mazznoer/csscolorparser

Go (Golang) CSS color parser library
https://github.com/mazznoer/csscolorparser

color colour css graphic parser

Last synced: 3 days ago
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Go (Golang) CSS color parser library

• Host: GitHub
• URL: https://github.com/mazznoer/csscolorparser
• Owner: mazznoer
• License: mit
• Created: 2020-11-25T15:11:29.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2025-05-20T17:15:54.000Z (9 months ago)
• Last Synced: 2025-09-19T06:37:58.780Z (5 months ago)
• Topics: color, colour, css, graphic, parser
• Language: Go
• Homepage:
• Size: 61.5 KB
• Stars: 31
• Watchers: 4
• Forks: 4
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          
# Go Language CSS Color Parser Library

[![PkgGoDev](https://pkg.go.dev/badge/github.com/mazznoer/csscolorparser)](https://pkg.go.dev/github.com/mazznoer/csscolorparser)

![Build Status](https://github.com/mazznoer/csscolorparser/actions/workflows/go.yml/badge.svg)

[![go report](https://goreportcard.com/badge/github.com/mazznoer/csscolorparser)](https://goreportcard.com/report/github.com/mazznoer/csscolorparser)

[Go](https://www.golang.org/) library for parsing CSS color string as defined in the W3C's [CSS Color Module Level 4](https://www.w3.org/TR/css-color-4/).

## Supported Color Format

* [Named colors](https://www.w3.org/TR/css-color-4/#named-colors)

* RGB hexadecimal (with and without `#` prefix)

  * Short format `#rgb`

  * Short format with alpha `#rgba`

  * Long format `#rrggbb`

  * Long format with alpha `#rrggbbaa`

* `rgb()` and `rgba()`

* `hsl()` and `hsla()`

* `hwb()`

* `lab()`

* `lch()`

* `oklab()`

* `oklch()`

* `hwba()`, `hsv()`, `hsva()` - not in CSS standard.

## Usage Examples

```go

import "github.com/mazznoer/csscolorparser"

c, err := csscolorparser.Parse("gold")

if err != nil {

    panic(err)

}

fmt.Printf("R:%.3f, G:%.3f, B:%.3f, A:%.3f", c.R, c.G, c.B, c.A) // R:1.000, G:0.843, B:0.000, A:1.000

fmt.Println(c.RGBA255())   // 255 215 0 255

fmt.Println(c.HexString()) // #ffd700

fmt.Println(c.RGBString()) // rgb(255 215 0)

```

## Try It Online

* [Playground 1](https://play.golang.org/p/8KMIc1TLQB0)

* [Playground 2](https://play.golang.org/p/7kb62KSARwa)

## Similar Projects

* [csscolorparser](https://github.com/mazznoer/csscolorparser-rs) (Rust)

* [csscolorparser](https://github.com/deanm/css-color-parser-js) (Javascript)