#fca559 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.97:1	fail	fail	fail	AA: use #b95804 as the text (4.71:1) AAA: use #8c4303 as the text (7.19:1) AA: or shift the background to #4a4a4a (4.5:1) AAA: or shift the background to #2b2b2b (7.19:1)
Aaon black	10.67:1	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 #fca559 as the background.

Brands using this color

Webflowsecondary · #ffa666 · Δ1.392

Palettes built around it

e63946 457b9d f4a261 fff4e0 23201c

Retro Pop

Open in tool →

Fifties-diner red and steel blue with a peach — nostalgic pop that still passes contrast.

Playful Bold Warm

Fonts for this mood

#fca559 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 #fca559

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 #fca559 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fca559-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