#a39fb2 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	2.57:1	fail	fail	fail	AA: use #78718e as the text (4.61:1) AAA: use #5b566c as the text (7.02:1) AA: or shift the background to #383838 (4.56:1) AAA: or shift the background to #141414 (7.16:1)
Aaon black	8.16:1	pass	pass	pass	Passes AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a39fb2 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

mcpConnect your agent — build around #a39fb2

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 #a39fb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a39fb2-a99cc4-dfb84e-281f2d-e9ebf1?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