Contrast ratio for two hex colors
Contrast ratio for two hex colors
endpoint: https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/contrast-ok/mcp
registry: io.github.sadri-dridi/contrast-ok
A
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-03-26
TLS valid (53d left) · latency 53.0 ms ·
HTTP 200 · auth open ·
tools 31
manifest ca1685bbe57bd6a3
· drift events seen here: 4
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-12T04:47:21Z | ✓ | A | ✓ | 53.0 ms | 53d | 31 | ca1685bbe57bd6a3 |
| 2026-10-11T22:46:26Z | ✓ | A | ✓ | 64.0 ms | 54d | 31 | ca1685bbe57bd6a3 |
| 2026-10-11T16:45:41Z | ✓ | A | ✓ | 103.0 ms | 54d | 31 | ca1685bbe57bd6a3 |
| 2026-10-11T10:45:09Z | ✓ | A | ✓ | 90.0 ms | 54d | 31 | ca1685bbe57bd6a3 |
| 2026-10-11T04:44:16Z | ✓ | A | ✓ | 50.0 ms | 54d | 31 | ca1685bbe57bd6a3 |
| 2026-10-10T22:43:41Z | ✓ | A | ✓ | 55.0 ms | 55d | 31 | ca1685bbe57bd6a3 |
| 2026-10-10T16:42:58Z | ✓ | A | ✓ | 63.0 ms | 55d | 31 | ca1685bbe57bd6a3 |
| 2026-10-10T10:41:06Z | ✓ | A | ✓ | 64.0 ms | 55d | 31 | ca1685bbe57bd6a3 |
| 2026-10-10T04:39:52Z | ✓ | A | ✓ | 78.0 ms | 55d | 31 | ca1685bbe57bd6a3 |
| 2026-10-09T22:37:36Z | ✓ | A | ✓ | 48.0 ms | 56d | 31 | ca1685bbe57bd6a3 |
| 2026-10-09T16:37:02Z | ✓ | A | ✓ | 53.0 ms | 56d | 31 | ca1685bbe57bd6a3 |
| 2026-10-09T10:36:27Z | ✓ | A | ✓ | 95.0 ms | 56d | 31 | ca1685bbe57bd6a3 |
| 2026-10-09T04:34:39Z | ✓ | A | ✓ | 62.0 ms | 56d | 31 | ca1685bbe57bd6a3 |
| 2026-10-08T22:33:25Z | ✓ | A | ✓ | 52.0 ms | 57d | 31 | ca1685bbe57bd6a3 |
| 2026-10-08T16:32:46Z | ✓ | A | ✓ | 45.0 ms | 57d | 31 | ca1685bbe57bd6a3 |
| 2026-10-08T10:31:42Z | ✓ | A | ✓ | 99.0 ms | 57d | 31 | ca1685bbe57bd6a3 |
| 2026-10-08T04:30:53Z | ✓ | A | ✓ | 81.0 ms | 57d | 31 | ca1685bbe57bd6a3 |
| 2026-10-07T22:29:59Z | ✓ | A | ✓ | 125.0 ms | 58d | 31 | ca1685bbe57bd6a3 |
| 2026-10-07T16:29:29Z | ✓ | A | ✓ | 78.0 ms | 58d | 31 | ca1685bbe57bd6a3 |
| 2026-10-07T10:27:43Z | ✓ | A | ✓ | 72.0 ms | 58d | 31 | ca1685bbe57bd6a3 |
| 2026-10-07T04:26:34Z | ✓ | A | ✓ | 84.0 ms | 58d | 31 | ca1685bbe57bd6a3 |
| 2026-10-06T22:25:32Z | ✓ | A | ✓ | 56.0 ms | 59d | 31 | ca1685bbe57bd6a3 |
| 2026-10-06T16:24:48Z | ✓ | A | ✓ | 45.0 ms | 59d | 31 | ca1685bbe57bd6a3 |
| 2026-10-06T10:23:14Z | ✓ | A | ✓ | 51.0 ms | 59d | 31 | ca1685bbe57bd6a3 |
| 2026-10-06T04:22:32Z | ✓ | A | ✓ | 44.0 ms | 59d | 31 | ca1685bbe57bd6a3 |
| 2026-10-05T22:21:10Z | ✓ | A | ✓ | 63.0 ms | 60d | 31 | ca1685bbe57bd6a3 |
| 2026-10-05T16:20:30Z | ✓ | A | ✓ | 88.0 ms | 60d | 31 | ca1685bbe57bd6a3 |
| 2026-10-05T10:18:42Z | ✓ | A | ✓ | 85.0 ms | 60d | 31 | ca1685bbe57bd6a3 |
| 2026-10-05T04:17:32Z | ✓ | A | ✓ | 77.0 ms | 60d | 31 | ca1685bbe57bd6a3 |
| 2026-10-04T22:16:01Z | ✓ | A | ✓ | 45.0 ms | 61d | 31 | ca1685bbe57bd6a3 |