diff --git a/src/gui/theme.rs b/src/gui/theme.rs
index 1bf44c0..432e8ae 100644
--- a/src/gui/theme.rs
+++ b/src/gui/theme.rs
@@ -163,7 +163,9 @@ pub const YELLOW: ThemeTokens = ThemeTokens {
 	surface2: Color32::from_rgb(0x1A, 0x1A, 0x17),
 	text: Color32::from_rgb(0x0E, 0x0E, 0x0C),
 	text_dim: Color32::from_rgb(0x3A, 0x3A, 0x36),
-	text_mute: Color32::from_rgb(0x6B, 0x6A, 0x63),
+	// Muted on-bg tier darkened for the bright yellow bg: #6B6A63 was only
+	// 3.85:1 (sub-WCAG-AA); #55534A is 5.5:1 and still the faintest tier.
+	text_mute: Color32::from_rgb(0x55, 0x53, 0x4A),
 	surface_text: Color32::from_rgb(0xFA, 0xFA, 0xF7),
 	surface_text_dim: Color32::from_rgb(0x9A, 0x98, 0x8F),
 	surface_text_mute: Color32::from_rgb(0x60, 0x5E, 0x58),