# TinyColor: A Small, Permissive Color Parser That Has Not Changed Since 2014

> TinyColor is a dependency-free JavaScript library for color conversion and manipulation, known for its forgiving string parsing. The project has been stable since 2014, which is both its strength and its risk.

**bgrins/TinyColor** — GitHub describes it as Fast, small color manipulation and conversion for JavaScript. The repository metadata lists JavaScript as its primary language. The metadata lists the MIT license. This article stays within the project description and details documented in the GitHub repository README.

- Repository: https://github.com/bgrins/TinyColor
- Website: https://bgrins.github.io/TinyColor/
- Stars: 5,252 · Forks: 444
- Language: JavaScript
- License: MIT
- Published: 2026-08-13 · Updated: 2026-08-18 · Language: en
- Canonical page: https://hysenlabs.com/projects/bgrins-tinycolor

## What TinyColor Solves and Who It Is For

TinyColor is a JavaScript library for color manipulation and conversion. The README describes it as 'a small, fast library for color manipulation and conversion in JavaScript.' It accepts many forms of input, including hex strings, RGB, HSL, HSV, and named colors, and provides methods to convert between these formats. The library has no dependencies, which makes it attractive for projects that want to avoid dependency bloat. The intended audience is JavaScript developers who need to parse user-supplied color values, convert them to a canonical format, and perform basic operations like brightness checks. The permissive string parsing is the core value proposition: it is designed to make typing a color as input as easy as possible, tolerating missing commas, optional parentheses, and varying numeric ranges. This makes it useful for form inputs, CSS preprocessors, or any tool where users might type colors in inconsistent ways.

## How the Parsing Works: Permissive Input and Range Handling

The library's parsing is deliberately loose. According to the README, 'all commas, percentages, parenthesis are optional, and most input allow either 0-1, 0%-100%, or 0-n (where n is either 100, 255, or 360 depending on the value).' This means that a string like 'rgb (255, 0, 0)' and 'rgb 255 0 0' both parse to the same color. The numeric ranges are flexible: RGB accepts 0-255 or 0%-100%, while HSL and HSV require either 0%-100% or 0-1 for the S, L, and V components, but hue can be 0-360 or 0%-100%. There is also a `fromRatio` function that allows RGB and hue values to be specified as 0-1 ratios, which is useful when working with normalized values. The parsing is so permissive that invalid input is not rejected outright; instead, the library falls back to black. The `isValid` method returns false for invalid input, but the object still behaves as black when used with other methods. This design choice is a trade-off: it simplifies handling but can mask errors if you do not check validity explicitly.

## Getting Started: Installation and Module Formats

TinyColor is available on npm as `tinycolor2`. The README shows installation with `npm install tinycolor2`. In Node.js, you can use it with `var tinycolor = require("tinycolor2");` or with ES modules: `import tinycolor from "tinycolor2";`. For browser use, the README describes two options. You can download the ESM file from `npm/esm/tinycolor.js` and use it as a module, or use a CDN like `https://esm.sh/tinycolor2`. There is also a UMD build at `npm/cjs/tinycolor.js` that can be included with a script tag, which exposes a global `tinycolor` variable. The README gives a concrete example: `<script type='text/javascript' src='tinycolor.js'></script>` followed by `var color = tinycolor("red");`. The package name is `tinycolor2`, which is a point of confusion: the repository is called TinyColor, but the npm package has a '2' suffix. This is worth noting for anyone looking for the package.

## Core API: Conversion, Validation, and Alpha Control

The API is centered on a constructor that returns an object with methods for conversion and inspection. `getFormat` returns the format used to create the instance, such as 'name' or 'rgb'. `getOriginalInput` returns the original input, though for object inputs it returns a stringified version. `isValid` tells you whether parsing succeeded. The library provides methods to get brightness and luminance, which are useful for accessibility checks. `getBrightness` returns a value from 0-255 based on WCAG 1.0, while `getLuminance` returns 0-1 based on WCAG 2.0. There are also `isLight` and `isDark` helpers that use the brightness value. Alpha handling is explicit: `getAlpha` returns the alpha value (0-1), and `setAlpha` allows you to change it. The README shows that setting alpha on a red color to 0.5 results in `toRgbString()` returning 'rgba(255, 0, 0, .5)'. String conversion methods include `toHex`, `toHexString`, `toHsl`, `toHslString`, `toHsv`, and `toHsvString`. The README notes that the properties returned by `toHsv`, `toHsl`, and `toRgb` include an `alpha` value that can be ignored. This is a small but useful detail for developers who want to destructure the result.

## The 2014 Freeze: Stability or Abandonment?

The repository's last push was on 2014-07-06, and the only release listed is 1.0.0 from the same date. The project is not archived, but it has been effectively frozen for over a decade. This is a double-edged sword. On one hand, the API is stable and unlikely to change, which can be a benefit for long-lived projects that do not want to deal with breaking changes. On the other hand, there is no active maintenance, so bugs are not being fixed, and the library does not support newer color standards. The README references the CSS Color 4 spec for named colors, but the library predates CSS Color 4's full range of features. There is no mention of Lab, LCH, or other modern color spaces. For a library that is meant to handle color conversion, this is a significant limitation. The lack of maintenance is not necessarily a deal-breaker for simple use cases, but it is a risk if you need to rely on the library for critical functionality.

## Limitations and Failure Modes

The most obvious limitation is the fallback to black for invalid input. The README states: 'if the color is not valid then it will act like black when being used with other methods.' This means that a typo like 'redd' will silently produce black, which can be surprising in a UI where a user expects a visible color. The `isValid` method exists to catch this, but you must remember to call it. Another limitation is the lack of support for modern color spaces. The library handles RGB, HSL, HSV, and named colors, but not CMYK, Lab, or LCH. If your application needs those, TinyColor is the wrong tool. The permissive parsing also means that some inputs that are not valid CSS colors, such as 'rgb (255, 0, 0)' with a space before the parenthesis, are accepted. This is intentional, but it means that TinyColor is not a strict validator. For strict validation, you would need a different approach. The library also has no support for color interpolation or blending, which are common needs in data visualization. The README does not mention any such methods.

## Alternatives and a Comparison of Approaches

A common alternative to TinyColor is the `color` library (npm package `color`), which also provides color conversion and manipulation. The key difference is that `color` uses a chainable API and supports a wider range of color spaces, including Lab and LCH. While TinyColor focuses on permissive string parsing, `color` emphasizes a more structured object model. Another alternative is `chroma-js`, which offers color scales, interpolation, and more advanced features. The trade-off is size: TinyColor is explicitly small, while `chroma-js` is larger. If your need is simply to parse user input and convert to hex, TinyColor's permissiveness is a benefit. If you need to perform color math or work with modern color spaces, a more feature-rich library is better. The choice comes down to whether you value TinyColor's simplicity and zero dependencies over the additional capabilities of its competitors. For a project that only needs to convert a hex string to RGB, TinyColor is sufficient.

## Maintenance and License Implications

TinyColor is licensed under the MIT license, which is permissive and allows commercial use, modification, and redistribution. There are no copyleft obligations, which is favorable for proprietary projects. The maintenance situation is the bigger concern. With no commits since 2014, there is no active development, no issue triage, and no security patches. The README does not mention any contribution guidelines or a roadmap. The project is not archived, which means the maintainer has not explicitly abandoned it, but the lack of activity is effectively abandonment. For a library this small, this might be acceptable: the code is likely stable and has been used in production for years. However, you should verify that the library works with your JavaScript environment, especially if you are using modern tooling. The UMD build is from 2014 and may not be optimized for current bundlers. The ESM file exists, but it is unclear if it is a proper ES module or a transpiled version. Before adopting, test the library in your build pipeline and decide if the lack of updates is a risk you are willing to take.

## Conclusion

Adopt TinyColor if you need a small, dependency-free color parser that tolerates messy user input and you can live with a library that has not changed since 2014. Do not adopt it if you need modern color spaces like Lab or LCH, or if you require active maintenance. Before adopting, verify that the permissive parsing behavior matches your validation needs, and check that the API covers your required conversions. The project is frozen, so the real decision is whether a stable, unmaintained tool is acceptable for your use case.

## FAQ

### tinycolor vs tinycolor2

The package name used everywhere here is tinycolor2: `npm install tinycolor2`, then require or import it under that name. The browser builds are separate files in the repository, an ES module at npm/esm/tinycolor.js and a UMD file at npm/cjs/tinycolor.js, and esm.sh serves the same package to a module script tag.

### What does TinyColor do with a color string it cannot parse?

It does not throw. `isValid()` returns false and the rest of the methods treat the color as black, so `toString()` returns `#000000`. Check `isValid()` on any value that came from a user or a remote system.

### Does TinyColor work outside Node and the browser?

The root of the tree holds mod.js next to deno.json and deno.lock, so Deno resolves the library through its own module system. In a browser you can also import tinycolor2 straight from esm.sh inside a module script tag.

### Does TinyColor pull in any dependencies?

No. It states that it has no dependencies and ships as an MIT licensed library on npm under the name tinycolor2, with an ES module build and a UMD build produced from the single source file tinycolor.js.

## Sources

- [Official documentation](https://bgrins.github.io/TinyColor/)
- [Official README](https://github.com/bgrins/TinyColor#readme)
- [Project repository](https://github.com/bgrins/TinyColor)
- [Release notes](https://github.com/bgrins/TinyColor/releases)

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Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/bgrins-tinycolor