#09100b as text	Ratio	AA	AA large	AAA	Fix
Aaon white	19.26:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.09:1	fail	fail	fail	AA: use #49835a as the text (4.68:1) AAA: use #5fa573 as the text (7.12:1) AA: or shift the background to #7d7d7d (4.68:1) AAA: or shift the background to #9c9c9c (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #09100b as the background.

Brands using this color

Palettes built around it

6d28d9 0f0f0f a3e635 ffffff

Neobank

Open in tool →

Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank.

Vivid Bold ModernFintech

d4af37 8a8a8a c0392b 0d0d0d f5f5f5

Noir Beauty

Open in tool →

Black, gold and one deep red — the prestige cosmetics counter: all restraint and a single lipstick.

Dark Luxury BoldBeauty

Fonts for this mood

#09100b reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #09100b

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 #09100b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09100b-a2bead-bb59d4-1f2d29-ebf1e9?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