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Implement dynamic APCA contrast calculation for primary color pair #26

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Implement dynamic APCA contrast calculation for primary color pair #26

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22 changes: 19 additions & 3 deletions skills/utils/design-simulator.js
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Original file line number Diff line number Diff line change
Expand Up @@ -987,9 +987,25 @@ function main() {
console.log(`- Visual Weight Centroid: (${centroid.cx}, ${centroid.cy}) | Total Weight Mass: ${centroid.totalWeight}`);
if (centroid.isDynamicallyBalanced) console.log(`- Dynamic Balance: Achieved (Offset by counter-weights)`);
if (hasIntentionalOffset) console.log(`- Intentional Offset: Documented in design registry`);
const minL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.minLightness : 0;
const maxL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.maxLightness : 1;
const contrastValue = calculatePerceptualContrast(minL * 100, maxL * 100);
let primaryL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.maxLightness : 1;
let bgL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.minLightness : 0;

const combinedContext = cssText + htmlContent;
const primaryMatch = /--color-primary:\s*oklch\(\s*([0-9.%]+)/i.exec(combinedContext);
if (primaryMatch) {
let l = parseFloat(primaryMatch[1]);
if (primaryMatch[1].includes('%')) l = l / 100;
primaryL = l;
}

const bgMatch = /--color-background:\s*oklch\(\s*([0-9.%]+)/i.exec(combinedContext);
if (bgMatch) {
let l = parseFloat(bgMatch[1]);
if (bgMatch[1].includes('%')) l = l / 100;
bgL = l;
}

const contrastValue = calculatePerceptualContrast(primaryL * 100, bgL * 100);

console.log(`- Cognitive Load Index: ${friction.score} | Rating: ${friction.rating}`);
console.log(` [Elements Count: ${friction.totalElements} | Interactive Count: ${friction.interactiveCount} | Colors: ${friction.colorCount} | Chunks: ${friction.chunkCount}]`);
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