Add Polaris palette

[LeaVerou]

Summary

Adds the Shopify Polaris color palette, sourced from the foundational base ramps in @shopify/polaris-tokens (the colors.ts module — these are the underlying hue × step scales, not the semantic surface/text tokens layered on top). 13 hue families (gray, azure, blue, cyan, green, lime, magenta, orange, purple, red, rose, teal, yellow), each with 16 steps from 1 (lightest) to 16 (darkest). Alpha-only ramps (blackAlpha, whiteAlpha) are excluded since this repo is sRGB / light-mode only.

Hand-tuning evidence

Sampled OKLCH L across hues at each step (azure, blue, green, red, yellow, purple). Per-step lightness standard deviation:

step	mean L	σ
1	0.993	0.0019
5	0.928	0.0097
8	0.859	0.0121
10	0.744	0.0206
11	0.628	0.0204
12	0.552	0.0237
13	0.482	0.0323
14	0.406	0.0215
16	0.220	0.0152

σ exceeds 0.02 across the mid/dark range (peak ≈ 0.032 at step 13), so L is clearly not algorithmically locked — these are designer-curated ramps. Polaris designers tune each hue's progression for perceptual balance, especially the chromatic mid-tones (steps 10–14) where ramps shift from chroma growth into darkening. Design rationale: https://polaris.shopify.com/tokens/colors

Files

• data/raw/polaris.ts — verbatim source from polaris-tokens/src/colors.ts.
• data/colors/polaris.json — normalized {hue: {step: hex, ...}}, light-mode sRGB.
• data/palette_metadata.json — Polaris entry inserted as 8th entry, right after Primer.
• data/hues.json, data/palettes.json — regenerated via npm run build:data.

Test plan

• npm run build:data runs clean (no errors).
• Polaris appears in the rendered palette page in the expected position.
• Hue swatches render and match Polaris docs at https://polaris.shopify.com/tokens/colors.

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Generated by Claude Code

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