#65737b as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.89:1	pass	pass	fail	AAA: use #4e595f as the text (7.2:1)
Aaon black	4.29:1	fail	pass	fail	AA: use #6a7881 as the text (4.62:1) AAA: use #8c99a1 as the text (7.19:1) AA: or shift the background to #f7f7f7 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #65737b 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

a1a1aa 71717a f59e0b 18181b f4f4f5

Graphite

Open in tool →

A greyscale system with a single amber — the accent does all the work, so allow one per screen.

Technical Muted Dark Modern

4f46e5 6b7280 10b981 ffffff 111827

Indigo SaaS

Open in tool →

The dependable indigo-and-emerald B2B pairing: indigo for primary actions, emerald reserved for success states.

Modern Cool CleanSaas

mcpConnect your agent — build around #65737b

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 #65737b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/65737b-9cb1c4-df4e5f-1f222d-e9f1f0?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