#fcb131 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.83:1	fail	fail	fail	AA: use #a16702 as the text (4.71:1) AAA: use #794d02 as the text (7.3:1) AA: or shift the background to #4d4d4d (4.62:1) AAA: or shift the background to #303030 (7.21:1)
Aaon black	11.47:1	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 #fcb131 as the background.

Brands using this color

Mistral AIsecondary · #ffaf01 · Δ1.29

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

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

#fcb131 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 #fcb131

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 #fcb131 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fcb131-c4ba9c-62bbcb-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