#133939 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	12.56:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.67:1	fail	fail	fail	AA: use #2b8282 as the text (4.62:1) AAA: use #37a4a4 as the text (7.01:1) AA: or shift the background to #9c9c9c (4.57:1) AAA: or shift the background to #c2c2c2 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133939 as the background.

Brands using this color

N26accent · #003b39 · Δ1.268

Fonts for this mood

#133939 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →Modern fonts →

mcpConnect your agent — build around #133939

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 #133939 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133939-a2bbbe-d45994-1f272d-e9f1ed?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