#645e40 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	6.53:1	pass	pass	fail	AAA: use #5d583c as the text (7.18:1)
Aaon black	3.22:1	fail	pass	fail	AA: use #7c7550 as the text (4.52:1) AAA: use #a0976a as the text (7.13:1) AA: or shift the background to #d9d9d9 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #645e40 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

b45309 6b5b45 0f766e f7f3ec 1f1a14

Magazine Ochre

Open in tool →

Ochre and walnut on unbleached stock, with teal as the counterpoint — a features-section palette with some heat in it.

Editorial Warm Muted

Fonts for this mood

#645e40 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

Warm fonts →Editorial fonts →Elegant fonts →

mcpConnect your agent — build around #645e40

live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp

claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp

try this prompt

›analyze #645e40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/645e40-c4c29c-4eacdf-292d1f-f1ece9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md