#ef801f as text	Ratio	AA	AA large	AAA	Fix
Aaon white	2.7:1	fail	fail	fail	AA: use #b55b0d as the text (4.7:1) AAA: use #8a460a as the text (7.09:1) AA: or shift the background to #333333 (4.68:1) AAA: or shift the background to #0f0f0f (7.1:1)
Aaon black	7.78:1	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 #ef801f as the background.

Brands using this color

Cloudflareprimary · #f6821f · Δ1.378

Fonts for this mood

#ef801f 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 #ef801f

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 #ef801f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef801f-c4b39c-62cbc9-2d2c1f-f1e9ea?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