#0b130d as text	Ratio	AA	AA large	AAA	Fix
Aaon white	18.86:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.11:1	fail	fail	fail	AA: use #4a8258 as the text (4.63:1) AAA: use #60a471 as the text (7.05:1) AA: or shift the background to #7d7d7d (4.58:1) AAA: or shift the background to #9e9e9e (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b130d as the background.

Brands using this color

Palettes built around it

e11d48 111111 facc15 ffffff

Tabloid

Open in tool →

Red, black and yellow on white is the loudest three-color system in print — use it when headlines are the product.

Editorial Bold Vivid

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

Fonts for this mood

#0b130d reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #0b130d

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 #0b130d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b130d-a2beac-b759d4-1f2d29-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