#3f668d as text	Ratio	AA	AA large	AAA	Fix
Aaon white	6.01:1	pass	pass	fail	AAA: use #37597b as the text (7.3:1)
Aaon black	3.5:1	fail	pass	fail	AA: use #4a78a5 as the text (4.52:1) AAA: use #7299c0 as the text (7.03:1) AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f668d 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

2f6690 8fa3b8 e3a72f ffffff 1b2a41

Open House

Open in tool →

Steel blue for trust, warm gold for the sold moment — an approachable brokerage that still feels established.

Clean Cool ModernReal Estate

Fonts for this mood

#3f668d reads as cool, modern. The font library is tagged with the same vocabulary:

Modern fonts →

mcpConnect your agent — build around #3f668d

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 #3f668d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f668d-9cabc4-df514e-1f202d-e9f1f1?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