v4.0

• Removed mutable Color.
• Renamed ColorImmutable to Color.
• Converted to ES6 module.

v3.0.3

• Removed scheme.

v3.0.2

• Fixed various precision rounding issues.

v3.0.1

• Added trim to fromHSLString method.
• Added trim to fromRGBString method.
• Added round to alpha hex calculation in _getHex method.
• Added comment to _toHex method in Helpers JS.
• Fixed error message in fromHSLString method.
• Updated README.

v3.0

• Added support for alternate RGB/HSL formats.
• Modified toHSLString method to output in alternate format.
• Modified toRGBString method to output in alternate format.
• Removed fromRGBAString method.
• Removed fromHSLAString method.
• Updated tests.

v2.0.8

• Updated NPM.

v2.0.7

• Updated NPM.

v2.0.6

• Modified color2 argument to be optional in findContrast method.

v2.0.5

• Added findContrast method.

v2.0.4

• Added contrast static method.