diff --git a/docker/telemetry/grafana/dashboards/consensus-health.json b/docker/telemetry/grafana/dashboards/consensus-health.json
index 2871889a0d..6d69625b3a 100644
--- a/docker/telemetry/grafana/dashboards/consensus-health.json
+++ b/docker/telemetry/grafana/dashboards/consensus-health.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/fee-market.json b/docker/telemetry/grafana/dashboards/fee-market.json
index 3e5493e829..7f037c497a 100644
--- a/docker/telemetry/grafana/dashboards/fee-market.json
+++ b/docker/telemetry/grafana/dashboards/fee-market.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/job-queue.json b/docker/telemetry/grafana/dashboards/job-queue.json
index 286b732de0..6c7bc665eb 100644
--- a/docker/telemetry/grafana/dashboards/job-queue.json
+++ b/docker/telemetry/grafana/dashboards/job-queue.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/ledger-data-sync.json b/docker/telemetry/grafana/dashboards/ledger-data-sync.json
index 97d1209aae..7b98b13a96 100644
--- a/docker/telemetry/grafana/dashboards/ledger-data-sync.json
+++ b/docker/telemetry/grafana/dashboards/ledger-data-sync.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/ledger-operations.json b/docker/telemetry/grafana/dashboards/ledger-operations.json
index 84f7d8292e..3671dcdc3a 100644
--- a/docker/telemetry/grafana/dashboards/ledger-operations.json
+++ b/docker/telemetry/grafana/dashboards/ledger-operations.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/log-derived-insights.json b/docker/telemetry/grafana/dashboards/log-derived-insights.json
index f4c085ba3d..ac4d188f05 100644
--- a/docker/telemetry/grafana/dashboards/log-derived-insights.json
+++ b/docker/telemetry/grafana/dashboards/log-derived-insights.json
@@ -34,7 +34,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/network-traffic.json b/docker/telemetry/grafana/dashboards/network-traffic.json
index 8fc1e9618e..9003d390bf 100644
--- a/docker/telemetry/grafana/dashboards/network-traffic.json
+++ b/docker/telemetry/grafana/dashboards/network-traffic.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/node-health.json b/docker/telemetry/grafana/dashboards/node-health.json
index 48bc83c0ea..0f4b8c7333 100644
--- a/docker/telemetry/grafana/dashboards/node-health.json
+++ b/docker/telemetry/grafana/dashboards/node-health.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/overlay-traffic-detail.json b/docker/telemetry/grafana/dashboards/overlay-traffic-detail.json
index 62ffd6d7e5..636da59943 100644
--- a/docker/telemetry/grafana/dashboards/overlay-traffic-detail.json
+++ b/docker/telemetry/grafana/dashboards/overlay-traffic-detail.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/peer-network.json b/docker/telemetry/grafana/dashboards/peer-network.json
index 94d4a3d3a6..95fc6b7c29 100644
--- a/docker/telemetry/grafana/dashboards/peer-network.json
+++ b/docker/telemetry/grafana/dashboards/peer-network.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/peer-quality.json b/docker/telemetry/grafana/dashboards/peer-quality.json
index bf47b869fe..871b3504ba 100644
--- a/docker/telemetry/grafana/dashboards/peer-quality.json
+++ b/docker/telemetry/grafana/dashboards/peer-quality.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/rpc-pathfinding.json b/docker/telemetry/grafana/dashboards/rpc-pathfinding.json
index f1ebe0d30a..c383e33307 100644
--- a/docker/telemetry/grafana/dashboards/rpc-pathfinding.json
+++ b/docker/telemetry/grafana/dashboards/rpc-pathfinding.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/rpc-performance.json b/docker/telemetry/grafana/dashboards/rpc-performance.json
index 5f2ff427f2..48eea37461 100644
--- a/docker/telemetry/grafana/dashboards/rpc-performance.json
+++ b/docker/telemetry/grafana/dashboards/rpc-performance.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/transaction-overview.json b/docker/telemetry/grafana/dashboards/transaction-overview.json
index 12e6c32fc5..828286ed32 100644
--- a/docker/telemetry/grafana/dashboards/transaction-overview.json
+++ b/docker/telemetry/grafana/dashboards/transaction-overview.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docker/telemetry/grafana/dashboards/validator-health.json b/docker/telemetry/grafana/dashboards/validator-health.json
index f08abd0932..7f62eb9072 100644
--- a/docker/telemetry/grafana/dashboards/validator-health.json
+++ b/docker/telemetry/grafana/dashboards/validator-health.json
@@ -20,7 +20,7 @@
         },
         "enable": true,
         "hide": false,
-        "iconColor": "rgb(144, 133, 233)",
+        "iconColor": "rgb(70, 70, 70)",
         "name": "Perf Runs (JMeter)",
         "target": {
           "limit": 100,
diff --git a/docs/telemetry-runbook.md b/docs/telemetry-runbook.md
index e9b1a12239..fe1a2135f2 100644
--- a/docs/telemetry-runbook.md
+++ b/docs/telemetry-runbook.md
@@ -2022,10 +2022,10 @@ shaded band covers exactly the interval over which the load was applied.
 
 Every dashboard carries two tag-matched annotation layers, one per load driver:
 
-| Layer                | Tags                  | Color  |
-| -------------------- | --------------------- | ------ |
-| `Perf Runs (JMeter)` | `perf-iac` + `jmeter` | violet |
-| `Perf Runs (Locust)` | `perf-iac` + `locust` | aqua   |
+| Layer                | Tags                  | Color |
+| -------------------- | --------------------- | ----- |
+| `Perf Runs (JMeter)` | `perf-iac` + `jmeter` | grey  |
+| `Perf Runs (Locust)` | `perf-iac` + `locust` | aqua  |
 
 Both layers set `matchAny: false`, so a region is drawn only if it carries
 **both** of the layer's tags — the tag list is an AND, not an OR. Grafana tag
@@ -2055,7 +2055,9 @@ Two rendering limits are worth knowing. Grafana draws annotations only on time
 series, state timeline and candlestick panels, so on a board of mostly stats and
 gauges most panels show no band. And the shaded fill is rendered at 10% opacity,
 so the two drivers' colours are near-identical inside the band; the region's two
-full-colour dashed edges and the toolbar toggles are what tell them apart.
+full-colour dashed edges and the toolbar toggles are what tell them apart. The
+JMeter grey sits below the 3:1 contrast floor on the dark theme, so its edges
+read faint there; the Locust aqua clears it in both themes.
 
 ### Who owns which attribute