Use the correct inverse matrix

[facelessuser]

The scaled_cone_M was accidentally used as the inverse matrix. The proper one is now used. This is calculated directly by color.js and logged to the console instead of pre-calculating. This matrix is calculated when going from a D50 color space to D65.

[facelessuser]

For sanity, here is the Color.js output.

{
  scaled_cone_M: [
    [ 0.947386632323667, 0.28196156725620036, -0.1708280666484637 ],
    [ -0.7357288996314816, 1.6804471734451398, 0.035992069603406264 ],
    [ 0.029218329379919382, -0.05145129980782719, 0.7733468362356041 ]
  ],
  adapt_M: [
    [ 1.0479297925449969, 0.022946870601609652, -0.05019226628920524 ],
    [ 0.02962780877005599, 0.9904344267538799, -0.017073799063418826 ],
    [ -0.009243040646204504, 0.015055191490298152, 0.7518742814281371 ]
  ]
}
{
  scaled_cone_M: [
    [ 0.8456990870083072, 0.25169728162106253, -0.15249227197312118 ],
    [ -0.764955733398403, 1.7472029447856086, 0.03742185472636816 ],
    [ 0.05178975088972644, -0.09119789038422266, 1.3707642034977467 ]
  ],
  adapt_M: [
    [ 0.955473421488075, -0.02309845494876471, 0.06325924320057072 ],
    [ -0.0283697093338637, 1.0099953980813041, 0.021041441191917323 ],
    [ 0.012314014864481998, -0.020507649298898964, 1.330365926242124 ]
  ]
}

[romainmenke]

Thanks @facelessuser!

These values give good results for us : csstools/postcss-plugins#1179

[facelessuser]

Yeah, I'm usually more careful, but at least it's more on track now 🙃.

[facelessuser]

This should probably get updated in CSS spec as well. I saw it was updated with my fault inverse recently 😬.

[svgeesus]

This should probably get updated in CSS spec as well. I saw it was updated with my fault inverse recently

Will do!

[svgeesus]

CSS sample code updated w3c/csswg-drafts@5ae7930