CHANGELOG.md

Changes to PostCSS OKLab Function

5.0.15

October 2, 2026

• Correctly nest conditional rules inside @function instead of cloning the @function rule.
• Updated @csstools/postcss-progressive-custom-properties to 5.1.4 (patch)
• Updated @csstools/css-color-parser to 4.2.6 (patch)

5.0.14

October 1, 2026

• Updated @csstools/css-parser-algorithms to 4.0.2 (patch)
• Updated @csstools/css-color-parser to 4.2.5 (patch)

5.0.13

September 25, 2026

• Updated @csstools/css-tokenizer to 4.0.1 (patch)
• Updated @csstools/css-tokenizer to 4.0.2 (patch)
• Updated @csstools/css-parser-algorithms to 4.0.1 (patch)
• Updated @csstools/css-color-parser to 4.2.4 (patch)

5.0.12

September 13, 2026

• Updated @csstools/css-color-parser to 4.2.3 (patch)

5.0.11

September 6, 2026

• Updated @csstools/postcss-progressive-custom-properties to 5.1.3 (patch)

5.0.10

August 31, 2026

• Updated @csstools/css-color-parser to 4.2.2 (patch)

5.0.9

August 25, 2026

• Updated @csstools/css-color-parser to 4.2.1 (patch)

5.0.8

August 15, 2026

• Updated @csstools/css-color-parser to 4.2.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 5.1.2 (patch)

5.0.7

July 22, 2026

• Updated @csstools/css-color-parser to 4.1.10 (patch)

5.0.6

June 28, 2026

• Updated @csstools/css-color-parser to 4.1.8 (patch)
• Updated @csstools/css-color-parser to 4.1.9 (patch)
• Updated @csstools/postcss-progressive-custom-properties to 5.1.1 (patch)

5.0.5

June 14, 2026

• Updated @csstools/css-color-parser to 4.1.7 (patch)

5.0.4

May 13, 2026

• Updated @csstools/postcss-progressive-custom-properties to 5.1.0 (minor)
• Updated @csstools/css-color-parser to 4.1.1 (patch)

5.0.3

April 12, 2026

• Updated @csstools/css-color-parser to 4.1.0 (minor)

5.0.2

February 21, 2026

• Updated @csstools/css-color-parser to 4.0.2 (patch)

5.0.1

January 25, 2026

• Updated @csstools/css-color-parser to 4.0.1 (patch)

5.0.0

January 14, 2026

• Updated: Support for Node 20.19.0 or later (major).
• Removed: commonjs API. In supported Node versions require(esm) will work without needing to make code changes.
• Updated @csstools/css-tokenizer to 4.0.0 (major)
• Updated @csstools/utilities to 3.0.0 (major)
• Updated @csstools/css-parser-algorithms to 4.0.0 (major)
• Updated @csstools/postcss-progressive-custom-properties to 5.0.0 (major)
• Updated @csstools/css-color-parser to 4.0.0 (major)

4.0.12

September 21, 2025

• Updated @csstools/postcss-progressive-custom-properties to 4.2.1 (patch)

4.0.11

August 22, 2025

• Updated @csstools/css-color-parser to 3.1.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 4.2.0 (minor)

4.0.10

May 27, 2025

• Updated @csstools/css-tokenizer to 3.0.4 (patch)
• Updated @csstools/postcss-progressive-custom-properties to 4.1.0 (minor)
• Updated @csstools/css-parser-algorithms to 3.0.5 (patch)
• Updated @csstools/css-color-parser to 3.0.10 (patch)

4.0.9

April 19, 2025

• Updated @csstools/postcss-progressive-custom-properties to 4.0.1 (patch)
• Updated @csstools/css-color-parser to 3.0.9 (patch)

4.0.8

February 23, 2025

• Updated @csstools/css-color-parser to 3.0.8 (patch)

4.0.7

December 27, 2024

• Updated @csstools/css-color-parser to 3.0.7 (patch)

4.0.6

November 11, 2024

• Updated @csstools/css-color-parser to 3.0.6 (patch)

4.0.5

November 1, 2024

• Updated @csstools/css-tokenizer to 3.0.3 (patch)
• Updated @csstools/css-parser-algorithms to 3.0.4 (patch)
• Updated @csstools/css-color-parser to 3.0.5 (patch)

4.0.4

October 23, 2024

• Updated @csstools/css-parser-algorithms to 3.0.3 (patch)
• Updated @csstools/css-color-parser to 3.0.4 (patch)

4.0.3

October 10, 2024

• Updated @csstools/css-tokenizer to 3.0.2 (patch)
• Updated @csstools/css-parser-algorithms to 3.0.2 (patch)
• Updated @csstools/css-color-parser to 3.0.3 (patch)

4.0.2

August 18, 2024

• Updated @csstools/css-tokenizer to 3.0.1 (patch)
• Updated @csstools/css-parser-algorithms to 3.0.1 (patch)
• Updated @csstools/css-color-parser to 3.0.2 (patch)

4.0.1

August 14, 2024

• Updated @csstools/css-color-parser to 3.0.1 (patch)

4.0.0

August 3, 2024

• Updated: Support for Node v18+ (major).
• Updated @csstools/css-color-parser to 2.0.5 (patch)
• Updated @csstools/css-tokenizer to 3.0.0 (major)
• Updated @csstools/utilities to 2.0.0 (major)
• Updated @csstools/css-parser-algorithms to 3.0.0 (major)
• Updated @csstools/postcss-progressive-custom-properties to 4.0.0 (major)
• Updated @csstools/css-color-parser to 3.0.0 (major)

3.0.19

July 7, 2024

• Updated @csstools/postcss-progressive-custom-properties to 3.3.0 (minor)

3.0.18

July 6, 2024

• Updated @csstools/css-tokenizer to 2.4.1 (patch)
• Updated @csstools/css-parser-algorithms to 2.7.1 (patch)
• Updated @csstools/css-color-parser to 2.0.4 (patch)

3.0.17

June 29, 2024

• Updated @csstools/css-tokenizer to 2.3.2 (patch)
• Updated @csstools/css-parser-algorithms to 2.7.0 (minor)
• Updated @csstools/css-color-parser to 2.0.3 (patch)

3.0.16

May 4, 2024

• Updated @csstools/css-tokenizer to 2.3.1 (patch)
• Updated @csstools/css-parser-algorithms to 2.6.3 (patch)
• Updated @csstools/css-color-parser to 2.0.2 (patch)

3.0.15

May 4, 2024

• Updated @csstools/css-tokenizer to 2.3.0 (minor)
• Updated @csstools/css-parser-algorithms to 2.6.2 (patch)
• Updated @csstools/css-color-parser to 2.0.1 (patch)

3.0.14

April 21, 2024

• Updated @csstools/css-color-parser to 2.0.0 (major)

3.0.13

March 31, 2024

• Updated @csstools/postcss-progressive-custom-properties to 3.2.0 (minor)
• Updated @csstools/css-color-parser to 1.6.3 (patch)

3.0.12

March 17, 2024

• Updated @csstools/css-color-parser to 1.6.2 (patch)

3.0.11

March 13, 2024

• Updated @csstools/css-tokenizer to 2.2.4 (patch)
• Updated @csstools/postcss-progressive-custom-properties to 3.1.1 (patch)
• Updated @csstools/css-parser-algorithms to 2.6.1 (patch)
• Updated @csstools/css-color-parser to 1.6.0 (minor)

3.0.10

February 19, 2024

• Reuse code with @csstools/utilities
• Updated @csstools/css-parser-algorithms to 2.6.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 3.1.0 (minor)
• Updated @csstools/css-color-parser to 1.5.2 (patch)

3.0.9

December 31, 2023

• Updated @csstools/css-tokenizer to 2.2.3 (patch)
• Updated @csstools/css-parser-algorithms to 2.5.0 (minor)
• Updated @csstools/css-color-parser to 1.5.1 (patch)

3.0.8

December 15, 2023

• Skip transforms when a color value contains experimental syntax
• Updated @csstools/css-tokenizer to 2.2.2 (patch)
• Updated @csstools/css-parser-algorithms to 2.4.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 3.0.3 (patch)
• Updated @csstools/css-color-parser to 1.5.0 (minor)

3.0.7

October 9, 2023

• Updated @csstools/css-color-parser to 1.4.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 3.0.2 (patch)

3.0.6

October 2, 2023

• Updated @csstools/css-color-parser to 1.3.3 (patch)

3.0.5

September 24, 2023

• Small performance improvements
• Updated @csstools/css-tokenizer to 2.2.1 (patch)
• Updated @csstools/css-parser-algorithms to 2.3.2 (patch)
• Updated @csstools/css-color-parser to 1.3.2 (patch)

3.0.4

September 18, 2023

• Updated @csstools/postcss-progressive-custom-properties to 3.0.1 (patch)

3.0.3

September 2, 2023

• Updated @csstools/css-color-parser to 1.3.1 (patch)

3.0.2

August 28, 2023

• Updated @csstools/css-color-parser to 1.3.0 (minor)

3.0.1

July 24, 2023

• Updated @csstools/css-tokenizer to 2.2.0 (minor)
• Updated @csstools/css-parser-algorithms to 2.3.1 (patch)

3.0.0

July 3, 2023

• Change license to MIT-0 (read more about this change in the blog post)
• Updated @csstools/css-parser-algorithms to 2.3.0 (minor)
• Updated @csstools/postcss-progressive-custom-properties to 3.0.0 (major)
• Updated @csstools/css-color-parser to 1.2.2 (patch)

2.2.3

June 1, 2023

• Updated @csstools/postcss-progressive-custom-properties to 2.3.0 (minor)

2.2.2

May 19, 2023

• Ignore relative color syntax
• Updated @csstools/postcss-progressive-custom-properties to 2.2.0 (minor)
• Updated @csstools/css-color-parser to 1.2.0 (minor)

2.2.1

April 10, 2023

• Updated @csstools/css-tokenizer to 2.1.1 (patch)
• Updated @csstools/css-parser-algorithms to 2.1.1 (patch)
• Updated @csstools/css-color-parser to 1.1.2 (patch)

2.2.0

March 25, 2023

• Add @csstools/css-color-parser dependency for all color value transformations.
• Add support for calc expressions in color components.
• Skip color(display-p3 0 0 0) fallbacks when the color is already in the srgb gamut.

2.1.0

February 6, 2023

• Add: @csstools/color-helpers dependency for all color value transformations.

2.0.1

January 28, 2023

• Improve types declaration in package.json

2.0.0

January 24, 2023

• Updated: Support for Node v14+ (major).

1.1.1

July 8, 2022

• Fix case insensitive matching.

1.1.0

April 4, 2022

• Allow percentage and number units in more color components.

.percentages {
	color-1: oklab(40% 0.309% 0.975%);
	color-2: oklch(40% 31.718385875% 34.568626);

	/* becomes */

	color-1: rgb(73, 71, 69);
	color-1: color(display-p3 0.28515 0.27983 0.27246);
	color-2: rgb(126, 37, 15);
	color-2: color(display-p3 0.45368 0.16978 0.09411);
}

.numbers {
	color-1: oklab(0.40 0.001236 0.0039);
	color-2: oklch(0.40 0.1268735435 34.568626);

	/* becomes */

	color-1: rgb(73, 71, 69);
	color-1: color(display-p3 0.28515 0.27983 0.27246);
	color-2: rgb(126, 37, 15);
	color-2: color(display-p3 0.45368 0.16978 0.09411);
}

1.0.2

March 8, 2022

• Fix gamut mapping giving overly unsaturated colors.
• Implement powerless color components in gamut mapping.

1.0.1

February 12, 2022

• Updated @csstools/postcss-progressive-custom-properties to 1.1.0.

1.0.0

February 11, 2022

• Initial version