#efb539 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.85:1	fail	fail	fail	AA: use #9c6e0d as the text (4.52:1) AAA: use #715009 as the text (7.36:1) AA: or shift the background to #4d4d4d (4.56:1) AAA: or shift the background to #303030 (7.13:1)
Aaon black	11.34:1	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 #efb539 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

d9480f 5c7c2f f2b134 fffbf0 2b1d0e

Farmers Market

Open in tool →

Tomato, leaf and honey — the three colors of a produce stand, warm enough to make anything look fresh.

Warm Friendly VividFood

Fonts for this mood

#efb539 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 #efb539

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 #efb539 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efb539-c4bc9c-62b6cb-2c2d1f-f1ebe9?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