#2b81ab as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.35:1	fail	pass	fail	AA: use #2a7da7 as the text (4.58:1) AAA: use #205f7e as the text (7:1) AA: or shift the background to #0a0a0a (4.55:1)
Aaon black	4.83:1	pass	pass	fail	AAA: use #3f9fcf as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b81ab as the background.

Brands using this color

Auth0primary · #0a84ae · Δ1.305

Fonts for this mood

#2b81ab reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →

mcpConnect your agent — build around #2b81ab

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 #2b81ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b81ab-9cb2c4-df4e64-1f232d-e9f1f0?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