#ef159b as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4:1	fail	pass	fail	AA: use #e01090 as the text (4.52:1) AAA: use #a70c6b as the text (7.22:1) AA: or shift the background to #141414 (4.61:1)
Aaon black	5.25:1	pass	pass	fail	AAA: use #f45dba as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef159b as the background.

Brands using this color

JetBrainsprimary · #f1049f · Δ0.928

Fonts for this mood

#ef159b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

Warm fonts →Playful fonts →Bold fonts →

mcpConnect your agent — build around #ef159b

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 #ef159b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef159b-c19fb0-6dcb62-2d1f22-f0e9f1?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