#516161 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	6.5:1	pass	pass	fail	AAA: use #4a5959 as the text (7.33:1)
Aaon black	3.23:1	fail	pass	fail	AA: use #667a7a as the text (4.63:1) AAA: use #859999 as the text (7.01:1) AA: or shift the background to #d9d9d9 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516161 as the background.

Brands using this color

GitHubtextMuted · #57606a · Δ1.882

Fonts for this mood

#516161 reads as muted, minimal. The font library is tagged with the same vocabulary:

Minimal fonts →

mcpConnect your agent — build around #516161

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 #516161 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516161-a2bbbe-d45994-1f272d-e9f1ed?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