#fdc64e as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.57:1	fail	fail	fail	AA: use #9d6b02 as the text (4.63:1) AAA: use #745001 as the text (7.27:1) AA: or shift the background to #575757 (4.6:1) AAA: or shift the background to #3b3b3b (7.13:1)
Aaon black	13.36:1	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 #fdc64e as the background.

Brands using this color

Lemon Squeezyprimary · #fcc434 · Δ1.581

Fonts for this mood

#fdc64e 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 #fdc64e

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 #fdc64e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fdc64e-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