Contrast ratio vs 4.5 for one hex on white
Contrast ratio vs 4.5 for one hex on white
endpoint: https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/hex-contrast-aa/mcp
registry: io.github.sadri-dridi/hex-contrast-aa
A
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-03-26
TLS valid (53d left) · latency 55.0 ms ·
HTTP 200 · auth open ·
tools 31
manifest 063bf992aa127a0e
· drift events seen here: 2
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-12T09:12:32Z | ✓ | A | ✓ | 55.0 ms | 53d | 31 | 063bf992aa127a0e |
| 2026-10-12T03:10:28Z | ✓ | A | ✓ | 53.0 ms | 53d | 31 | 063bf992aa127a0e |
| 2026-10-11T21:08:37Z | ✓ | A | ✓ | 58.0 ms | 54d | 31 | 063bf992aa127a0e |
| 2026-10-11T15:08:09Z | ✓ | A | ✓ | 40.0 ms | 54d | 31 | 063bf992aa127a0e |
| 2026-10-11T09:06:14Z | ✓ | A | ✓ | 84.0 ms | 54d | 31 | 063bf992aa127a0e |
| 2026-10-11T03:04:12Z | ✓ | A | ✓ | 43.0 ms | 54d | 31 | 063bf992aa127a0e |
| 2026-10-10T21:02:18Z | ✓ | A | ✓ | 48.0 ms | 55d | 31 | 063bf992aa127a0e |
| 2026-10-10T15:02:07Z | ✓ | A | ✓ | 48.0 ms | 55d | 31 | 063bf992aa127a0e |
| 2026-10-10T09:01:20Z | ✓ | A | ✓ | 107.0 ms | 55d | 31 | 063bf992aa127a0e |
| 2026-10-10T03:00:22Z | ✓ | A | ✓ | 195.0 ms | 55d | 31 | 063bf992aa127a0e |
| 2026-10-09T20:58:45Z | ✓ | A | ✓ | 67.0 ms | 56d | 31 | 063bf992aa127a0e |
| 2026-10-09T14:57:27Z | ✓ | A | ✓ | 90.0 ms | 56d | 31 | 063bf992aa127a0e |
| 2026-10-09T08:54:36Z | ✓ | A | ✓ | 166.0 ms | 56d | 31 | 063bf992aa127a0e |
| 2026-10-09T02:53:23Z | ✓ | A | ✓ | 83.0 ms | 56d | 31 | 063bf992aa127a0e |
| 2026-10-08T20:52:20Z | ✓ | A | ✓ | 139.0 ms | 57d | 31 | 063bf992aa127a0e |
| 2026-10-08T14:51:49Z | ✓ | A | ✓ | 59.0 ms | 57d | 31 | 063bf992aa127a0e |
| 2026-10-08T08:49:23Z | ✓ | A | ✓ | 213.0 ms | 57d | 31 | 063bf992aa127a0e |
| 2026-10-08T02:48:26Z | ✓ | A | ✓ | 63.0 ms | 57d | 31 | 063bf992aa127a0e |
| 2026-10-07T20:48:01Z | ✓ | A | ✓ | 88.0 ms | 58d | 31 | 063bf992aa127a0e |
| 2026-10-07T14:47:55Z | ✓ | A | ✓ | 77.0 ms | 58d | 31 | 063bf992aa127a0e |
| 2026-10-07T08:47:14Z | ✓ | A | ✓ | 44.0 ms | 58d | 31 | 063bf992aa127a0e |
| 2026-10-07T02:46:44Z | ✓ | A | ✓ | 73.0 ms | 58d | 31 | 063bf992aa127a0e |
| 2026-10-06T20:46:34Z | ✓ | A | ✓ | 67.0 ms | 59d | 31 | 063bf992aa127a0e |
| 2026-10-06T14:46:13Z | ✓ | A | ✓ | 98.0 ms | 59d | 31 | 063bf992aa127a0e |
| 2026-10-06T08:45:01Z | ✓ | A | ✓ | 55.0 ms | 59d | 31 | 063bf992aa127a0e |
| 2026-10-06T02:43:20Z | ✓ | A | ✓ | 53.0 ms | 59d | 31 | 063bf992aa127a0e |
| 2026-10-05T20:42:00Z | ✓ | A | ✓ | 73.0 ms | 60d | 31 | 063bf992aa127a0e |
| 2026-10-05T14:40:41Z | ✓ | A | ✓ | 75.0 ms | 60d | 31 | 063bf992aa127a0e |
| 2026-10-05T08:39:52Z | ✓ | A | ✓ | 94.0 ms | 60d | 31 | 063bf992aa127a0e |
| 2026-10-05T02:39:21Z | ✓ | A | ✓ | 53.0 ms | 60d | 31 | 063bf992aa127a0e |