#ca5381 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.15:1	fail	pass	fail	AA: use #c74878 as the text (4.54:1) AAA: use #9c3059 as the text (7.05:1) AA: or shift the background to #121212 (4.52:1)
Aaon black	5.07:1	pass	pass	fail	AAA: use #d67a9e as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ca5381 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

ff6f61 ffb347 c9518b 1a0f1f fff3e0

Sunset Boulevard

Open in tool →

Coral, apricot and magenta on aubergine — the gradient sunset every event brand wants, decomposed into flat tokens.

Warm Vivid Bold Dark

Fonts for this mood

#ca5381 reads as warm. The font library is tagged with the same vocabulary:

Warm fonts →

mcpConnect your agent — build around #ca5381

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 #ca5381 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ca5381-c49ca7-62cb70-2d201f-f1e9f0?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