サンプル

three 0.185.1: ColorManagement.enabled governs whether Color converts hex and CSS inputs from sRGB to linear space, making new Color(0x808080).r evaluate to ~0.216 rather than 0.502.

検証済みサンプル — npm three 0.185.1: ColorManagement.enabled governs whether Color converts hex and CSS inputs from sRGB to linear space, making new…

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実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

宣言された環境 node linux x64 node node npm

環境	コントラクト	ステージ	実行日
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1	2026-08-17
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1	2026-08-18

HOW

ゴール: ColorManagement.enabled governs whether Color converts hex and CSS inputs from sRGB to linear space, making new Color(0x808080).r evaluate to ~0.216 rather than 0.502.
パッケージ: three 0.185.1
シンボル: ColorManagement
Color
環境: node
作成日: 2026-08-17T10:18:36Z

When ColorManagement.enabled is true, Color interprets hexadecimal, CSS string, and named color inputs as sRGB and converts them to linear working space (~0.216 for 0x808080), whereas numeric constructors assume linear space (~0.502).
Color.getHex() converts working color space to sRGB, returning 0x808080 for hex-initialized colors but 0xbcbcbc for linear 0.502 numeric inputs.
Setting ColorManagement.enabled to false bypasses color space conversions, causing new Color(0x808080).r to equal 128/255 (~0.502) and match numeric constructor values.
Setting ColorManagement.workingColorSpace to SRGBColorSpace keeps sRGB hex inputs unchanged without linear transfer transformation.