Typography · Evaluation
IBM Plex
Compliance Index score
51/100 · F
= flat since last week
Per-category breakdown
Each category is scored independently. The cohort average shows how this site compares to the 30-site cohort in each dimension.
Evaluation
IBM Plex scores 51/F on the Designesy Compliance Index — 7 of 40 checks passed, 4 failed, 23 warned, 3 skipped. The cohort mean is 62.2/D across 30 scored sites. IBM Plex sits 18% below the cohort mean.
Strongest category: Identity at 75.0%. Weakest scored category: Tokens at 0.0%. The gap between best and worst is the finding — most systems are strong in one dimension and absent in another.
F-grade means IBM Plex scores below 60 — the contract's pass threshold. The failing checks are not subjective: they are missing CSS primitives that the contract requires at :root.
This evaluation is deterministic — no LLM, no human judgment, no survey. The same 40-check engine that scored IBM Plex scores every site on the leaderboard. Re-score plex.ibm.com live to see if anything has changed since 2026-08-03.
Scored 2026-08-03 against contract v0.4.0 (40 checks, 14 weighted categories). Re-scored weekly via GitHub Action.
Cohort context
This site
51/100
Cohort mean
62.2/100
Cohort median
62.6/100
Delta from mean
-11.2
Why this site is scored
Org-first type system