#6b33db as text	Ratio	AA	AA large	AAA	Fix
Aaon white	6.73:1	pass	pass	fail	AAA: use #652bda as the text (7.21:1)
Aaon black	3.12:1	fail	pass	fail	AA: use #875ae2 as the text (4.59:1) AAA: use #a786ea as the text (7.24:1) AA: or shift the background to #d4d4d4 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b33db as the background.

Brands using this color

Klarna USaccent · #7039e2 · Δ1.78

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

Fonts for this mood

#6b33db reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →

mcpConnect your agent — build around #6b33db

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 #6b33db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b33db-ae9cc4-dfc94e-2a1f2d-e9ebf1?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