diff --git a/skills/diagram-design/SKILL.md b/skills/diagram-design/SKILL.md
index 7e27cad..9b22a32 100644
--- a/skills/diagram-design/SKILL.md
+++ b/skills/diagram-design/SKILL.md
@@ -20,9 +20,9 @@ Twenty-seven visual types. Semantic patterns describe behavior independently; ty
 
 Don't silently ship default-skinned diagrams into a branded project.
 
-Open [`references/style-guide.md`](references/style-guide.md) and check the default tokens. If they're still the shipped defaults (paper `#faf7f2`, ink `#1c1917`, accent `#b5523a` rust), **pause and ask the user**:
+Open [`references/style-guide.md`](references/style-guide.md) and check the default tokens. If they're still the shipped defaults (paper `#f5f5f5`, ink `#2d3142`, accent `#eb6c36` atomic-tangerine), **pause and ask the user**:
 
-> *"This is your first Schematic in this project. The style guide is still at the default (neutral stone + rust). Do you want to customize it to match your brand first? Options: (a) pull from your website URL, (b) extract from an installed skill, (c) extract from a local folder / design-system directory, (d) paste tokens manually, (e) proceed with the default for now."*
+> *"This is your first Schematic in this project. The style guide is still at the default (neutral white-smoke + atomic-tangerine). Do you want to customize it to match your brand first? Options: (a) pull from your website URL, (b) extract from an installed skill, (c) extract from a local folder / design-system directory, (d) paste tokens manually, (e) proceed with the default for now."*
 
 Then branch:
 
@@ -32,7 +32,7 @@ Then branch:
 - **(d)** → accept the user's tokens and write them into `style-guide.md` under a new "Custom tokens" section.
 - **(e)** → proceed; optionally remind the user they can run onboarding later.
 
-**Once the style guide has been customized** (or the user explicitly opted for default), skip this gate on subsequent runs. A simple way to detect customization: if the `accent` value in `style-guide.md` differs from `#b5523a`, assume custom.
+**Once the style guide has been customized** (or the user explicitly opted for default), skip this gate on subsequent runs. A simple way to detect customization: if the `accent` value in `style-guide.md` differs from `#eb6c36`, assume custom.
 
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