diff --git a/ui/src/components/account-flow-viz.tsx b/ui/src/components/account-flow-viz.tsx
index 59339640..c23e95ea 100644
--- a/ui/src/components/account-flow-viz.tsx
+++ b/ui/src/components/account-flow-viz.tsx
@@ -252,8 +252,8 @@ export function AccountFlowViz({ providerData, onBack }: AccountFlowVizProps) {
 
     if (newPulsing.size > 0) {
       setPulsingAccounts(newPulsing);
-      // Clear pulse after animation
-      const timer = setTimeout(() => setPulsingAccounts(new Set()), 600);
+      // Clear pulse after animation completes (match CSS animation duration)
+      const timer = setTimeout(() => setPulsingAccounts(new Set()), 2000);
       return () => clearTimeout(timer);
     }
     // eslint-disable-next-line react-hooks/exhaustive-deps
@@ -429,15 +429,29 @@ export function AccountFlowViz({ providerData, onBack }: AccountFlowVizProps) {
                   />
                   {/* Pulse layer - only shows when new activity detected */}
                   {isPulsing && (
-                    <path
-                      d={d}
-                      fill="none"
-                      stroke={account.color}
-                      strokeWidth={strokeWidth * 1.5}
-                      strokeLinecap="round"
-                      filter="url(#flow-glow)"
-                      className="animate-request-pulse"
-                    />
+                    <>
+                      {/* Glowing path pulse */}
+                      <path
+                        d={d}
+                        fill="none"
+                        stroke={account.color}
+                        strokeWidth={strokeWidth * 2}
+                        strokeLinecap="round"
+                        filter="url(#flow-glow)"
+                        className="animate-request-pulse"
+                      />
+                      {/* Traveling dot along path */}
+                      <circle
+                        r={6}
+                        fill={account.color}
+                        filter="url(#flow-glow)"
+                        style={{
+                          offsetPath: `path('${d}')`,
+                          offsetDistance: '0%',
+                          animation: 'travel-dot 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards',
+                        }}
+                      />
+                    </>
                   )}
                 </g>
               );
@@ -731,20 +745,20 @@ export function AccountFlowViz({ providerData, onBack }: AccountFlowVizProps) {
                 {/* Stats */}
                 <div className="bg-muted/30 dark:bg-zinc-900/50 rounded-lg p-3 border border-border">
                   <div className="flex items-center gap-1.5 text-[10px] text-muted-foreground mb-1">
-                    <CheckCircle2 className="w-3 h-3 text-emerald-500" />
+                    <CheckCircle2 className="w-3 h-3 text-emerald-700 dark:text-emerald-500" />
                     <span>SUCCESSFUL</span>
                   </div>
-                  <div className="text-xl font-mono text-emerald-500 tracking-tighter">
+                  <div className="text-xl font-mono text-emerald-700 dark:text-emerald-500 tracking-tighter">
                     {selectedAccount.successCount.toLocaleString()}
                   </div>
                 </div>
 
                 <div className="bg-muted/30 dark:bg-zinc-900/50 rounded-lg p-3 border border-border">
                   <div className="flex items-center gap-1.5 text-[10px] text-muted-foreground mb-1">
-                    <XCircle className="w-3 h-3 text-red-500" />
+                    <XCircle className="w-3 h-3 text-red-700 dark:text-red-500" />
                     <span>FAILED</span>
                   </div>
-                  <div className="text-xl font-mono text-red-500 tracking-tighter">
+                  <div className="text-xl font-mono text-red-700 dark:text-red-500 tracking-tighter">
                     {selectedAccount.failureCount.toLocaleString()}
                   </div>
                 </div>
diff --git a/ui/src/components/auth-monitor.tsx b/ui/src/components/auth-monitor.tsx
index cdac5e5c..4f812050 100644
--- a/ui/src/components/auth-monitor.tsx
+++ b/ui/src/components/auth-monitor.tsx
@@ -48,18 +48,18 @@ function cleanEmail(email: string): string {
   return email.replace(/@(gmail|yahoo|hotmail|outlook|icloud)\.com$/i, '');
 }
 
-// Vibrant colors for account segments
+// Vibrant colors for account segments - darker for light theme contrast
 const ACCOUNT_COLORS = [
-  '#277da1', // Cerulean
-  '#43aa8b', // Seaweed
-  '#f9c74f', // Tuscan Sun
-  '#f94144', // Strawberry
-  '#f3722c', // Pumpkin
-  '#90be6d', // Willow
-  '#577590', // Blue Slate
-  '#f8961e', // Carrot
-  '#4d908e', // Dark Cyan
-  '#a78bfa', // Purple
+  '#1e6091', // Deep Cerulean (was #277da1)
+  '#2d8a6e', // Deep Seaweed (was #43aa8b)
+  '#d4a012', // Dark Tuscan (was #f9c74f)
+  '#c92a2d', // Deep Strawberry (was #f94144)
+  '#c45a1a', // Deep Pumpkin (was #f3722c)
+  '#6b9c4d', // Dark Willow (was #90be6d)
+  '#3d5a73', // Deep Blue Slate (was #577590)
+  '#cc7614', // Dark Carrot (was #f8961e)
+  '#3a7371', // Deep Cyan (was #4d908e)
+  '#7c5fc4', // Deep Purple (was #a78bfa)
 ];
 
 /** Enhanced live pulse indicator with multi-ring animation */
@@ -94,15 +94,15 @@ function InlineStatsBadge({ success, failure }: { success: number; failure: numb
   return (
     <div className="flex items-center gap-2">
       <div className="flex items-center gap-0.5">
-        <CheckCircle2 className="w-3 h-3 text-emerald-500" />
-        <span className="text-[10px] font-mono font-medium text-emerald-500">
+        <CheckCircle2 className="w-3 h-3 text-emerald-700 dark:text-emerald-500" />
+        <span className="text-[10px] font-mono font-medium text-emerald-700 dark:text-emerald-500">
           {success.toLocaleString()}
         </span>
       </div>
       {failure > 0 && (
         <div className="flex items-center gap-0.5">
-          <XCircle className="w-3 h-3 text-red-500" />
-          <span className="text-[10px] font-mono font-medium text-red-500">
+          <XCircle className="w-3 h-3 text-red-700 dark:text-red-500" />
+          <span className="text-[10px] font-mono font-medium text-red-700 dark:text-red-500">
             {failure.toLocaleString()}
           </span>
         </div>
@@ -308,7 +308,7 @@ export function AuthMonitor() {
       </div>
 
       {/* Flow Visualization */}
-      <div className="relative min-h-[320px] overflow-hidden">
+      <div className="relative overflow-hidden">
         {selectedProviderData ? (
           // Account-level flow view
           <AccountFlowViz
diff --git a/ui/src/index.css b/ui/src/index.css
index ffac8b61..1eba2243 100644
--- a/ui/src/index.css
+++ b/ui/src/index.css
@@ -5,46 +5,46 @@
 :root {
   /* CCS Brand Colors - Calculated from Crail, Pampas, White, Cloudy */
   /* Primary: Neutral (Dark Warm Grey) - Demoted Crail from Primary */
-  --primary: oklch(0.2 0.02 40);
+  --primary: oklch(0.15 0.02 40); /* Darker for better contrast */
   --primary-foreground: oklch(0.9635 0.0067 97.35); /* Pampas */
 
-  --secondary: oklch(0.9 0.01 95); /* Light Cloudy */
-  --secondary-foreground: oklch(0.2 0.02 40);
+  --secondary: oklch(0.88 0.012 95); /* Slightly darker */
+  --secondary-foreground: oklch(0.15 0.02 40);
 
   /* Accent: Crail (Moved from Primary) */
-  --accent: oklch(0.5971 0.1352 39.87); /* Crail */
+  --accent: oklch(0.52 0.15 39.87); /* Crail - slightly darker */
   --accent-foreground: oklch(1 0 0); /* White */
 
   --background: oklch(0.9635 0.0067 97.35); /* Pampas */
-  --foreground: oklch(0.2 0.02 40); /* Dark warm grey */
+  --foreground: oklch(0.15 0.02 40); /* Darker for better readability */
 
-  --muted: oklch(0.92 0.01 95);
-  --muted-foreground: oklch(0.55 0.02 40);
+  --muted: oklch(0.9 0.012 95);
+  --muted-foreground: oklch(0.4 0.025 40); /* Much darker: 0.55 -> 0.40 */
 
-  --border: oklch(0.85 0.015 91.6); /* Based on Cloudy */
-  --input: oklch(0.85 0.015 91.6);
+  --border: oklch(0.78 0.02 91.6); /* Darker: 0.85 -> 0.78 */
+  --input: oklch(0.78 0.02 91.6);
 
-  --ring: oklch(0.2 0.02 40); /* Match primary */
+  --ring: oklch(0.15 0.02 40); /* Match primary */
   --radius: 0.5rem;
 
-  --popover: oklch(0.9635 0.0067 97.35); /* Match background */
-  --popover-foreground: oklch(0.2 0.02 40); /* Match foreground */
+  --popover: oklch(0.98 0.005 97.35); /* Slight depth */
+  --popover-foreground: oklch(0.15 0.02 40); /* Match foreground */
 
-  --card: oklch(0.9635 0.0067 97.35); /* Match background */
-  --card-foreground: oklch(0.2 0.02 40); /* Match foreground */
+  --card: oklch(0.98 0.005 97.35); /* Slight depth from background */
+  --card-foreground: oklch(0.15 0.02 40); /* Match foreground */
 
-  --destructive: oklch(0.577 0.245 27.325); /* Red 600 */
-  --destructive-foreground: oklch(0.9635 0.0067 97.35); /* White */
+  --destructive: oklch(0.5 0.22 27); /* Darker red for visibility */
+  --destructive-foreground: oklch(0.98 0.005 97.35); /* White */
 
   /* Sidebar colors - Light */
   --sidebar: oklch(0.9635 0.0067 97.35); /* Pampas */
-  --sidebar-foreground: oklch(0.2 0.02 40);
-  --sidebar-primary: oklch(0.2 0.02 40); /* Neutral */
+  --sidebar-foreground: oklch(0.15 0.02 40);
+  --sidebar-primary: oklch(0.15 0.02 40); /* Neutral - darker */
   --sidebar-primary-foreground: oklch(0.9635 0.0067 97.35);
-  --sidebar-accent: oklch(0.5971 0.1352 39.87); /* Crail */
+  --sidebar-accent: oklch(0.52 0.15 39.87); /* Crail - darker */
   --sidebar-accent-foreground: oklch(1 0 0);
-  --sidebar-border: oklch(0.85 0.015 91.6);
-  --sidebar-ring: oklch(0.2 0.02 40);
+  --sidebar-border: oklch(0.78 0.02 91.6); /* Darker */
+  --sidebar-ring: oklch(0.15 0.02 40);
 }
 
 .dark {
@@ -203,25 +203,57 @@
 /* Flow visualization animations */
 @keyframes request-pulse {
   0% {
-    stroke-opacity: 0.9;
+    stroke-opacity: 1;
     stroke-width: inherit;
+    filter: drop-shadow(0 0 2px currentColor);
   }
-  50% {
-    stroke-opacity: 0.6;
+  30% {
+    stroke-opacity: 0.9;
+    filter: drop-shadow(0 0 8px currentColor);
+  }
+  60% {
+    stroke-opacity: 0.5;
+    stroke-width: calc(inherit * 1.5);
+    filter: drop-shadow(0 0 4px currentColor);
   }
   100% {
     stroke-opacity: 0;
     stroke-width: calc(inherit * 2);
+    filter: none;
+  }
+}
+
+/* Traveling dot along path */
+@keyframes travel-dot {
+  0% {
+    offset-distance: 0%;
+    opacity: 1;
+  }
+  80% {
+    opacity: 1;
+  }
+  100% {
+    offset-distance: 100%;
+    opacity: 0;
   }
 }
 
 @keyframes glow-pulse {
   0%,
   100% {
-    box-shadow: 0 0 0 0 var(--glow-color, rgba(16, 185, 129, 0.2));
+    box-shadow: 0 0 0 0 var(--glow-color, rgba(16, 185, 129, 0.3));
+    transform: scale(1);
+  }
+  25% {
+    box-shadow: 0 0 15px 3px var(--glow-color, rgba(16, 185, 129, 0.5));
+    transform: scale(1.02);
   }
   50% {
-    box-shadow: 0 0 20px 4px var(--glow-color, rgba(16, 185, 129, 0.3));
+    box-shadow: 0 0 25px 6px var(--glow-color, rgba(16, 185, 129, 0.4));
+    transform: scale(1.01);
+  }
+  75% {
+    box-shadow: 0 0 12px 2px var(--glow-color, rgba(16, 185, 129, 0.35));
   }
 }
 
@@ -258,11 +290,15 @@
 }
 
 .animate-request-pulse {
-  animation: request-pulse 0.6s ease-out forwards;
+  animation: request-pulse 2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
 }
 
 .animate-glow-pulse {
-  animation: glow-pulse 2s ease-in-out infinite;
+  animation: glow-pulse 2.5s ease-in-out infinite;
+}
+
+.animate-travel-dot {
+  animation: travel-dot 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
 }
 
 .animate-subtle-float {
diff --git a/ui/src/lib/utils.ts b/ui/src/lib/utils.ts
index 417ed674..326a4440 100644
--- a/ui/src/lib/utils.ts
+++ b/ui/src/lib/utils.ts
@@ -29,11 +29,11 @@ const PROVIDER_COLORS: Record<string, string> = {
   qwen: '#f9c74f', // Tuscan
 };
 
-// Status colors (from Analytics Cost breakdown)
+// Status colors (from Analytics Cost breakdown) - darker for light theme contrast
 export const STATUS_COLORS = {
-  success: '#43aa8b', // Seaweed
-  degraded: '#e09f3e', // Ochre
-  failed: '#9e2a2b', // Merlot
+  success: '#15803d', // Green-700 (was Seaweed #43aa8b)
+  degraded: '#b45309', // Amber-700 (was Ochre #e09f3e)
+  failed: '#b91c1c', // Red-700 (was Merlot #9e2a2b)
 } as const;
 
 export function getModelColor(model: string): string {
diff --git a/ui/src/pages/home.tsx b/ui/src/pages/home.tsx
index 1a8adc5c..ccc5bf92 100644
--- a/ui/src/pages/home.tsx
+++ b/ui/src/pages/home.tsx
@@ -19,10 +19,10 @@ type StatVariant = 'default' | 'success' | 'warning' | 'error' | 'accent';
 
 const variantStyles: Record<StatVariant, { iconBg: string; iconColor: string }> = {
   default: { iconBg: 'bg-muted', iconColor: 'text-muted-foreground' },
-  success: { iconBg: 'bg-green-500/10', iconColor: 'text-green-600' },
-  warning: { iconBg: 'bg-yellow-500/10', iconColor: 'text-yellow-500' },
-  error: { iconBg: 'bg-red-500/10', iconColor: 'text-red-500' },
-  accent: { iconBg: 'bg-accent/10', iconColor: 'text-accent' },
+  success: { iconBg: 'bg-green-600/15', iconColor: 'text-green-700 dark:text-green-500' },
+  warning: { iconBg: 'bg-amber-500/15', iconColor: 'text-amber-700 dark:text-amber-400' },
+  error: { iconBg: 'bg-red-600/15', iconColor: 'text-red-700 dark:text-red-500' },
+  accent: { iconBg: 'bg-accent/15', iconColor: 'text-accent' },
 };
 
 function InlineStat({