Railway Secondary as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.81:1	fail	fail	fail	AA: use #e01082 as the text (4.6:1) AAA: use #ac0c64 as the text (7.02:1) AA: or shift the background to #4f4f4f (4.52:1) AAA: or shift the background to #303030 (7.28:1)
Aaon black	11.58:1	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 Railway Secondary as the background.

Brands using this color

Fonts for this mood

Railway Secondary reads as warm, vivid, light. The font library is tagged with the same vocabulary:

Warm fonts →Playful fonts →Bold fonts →Friendly fonts →Clean fonts →

mcpConnect your agent — build around Railway Secondary

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 #f9a8d4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f9a8d4-c19fae-66cb62-2d1f21-f1e9f1?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