#905ceb as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.27:1	fail	pass	fail	AA: use #8a53ea as the text (4.66:1) AAA: use #6821e4 as the text (7.18:1) AA: or shift the background to #0d0d0d (4.55:1)
Aaon black	4.92:1	pass	pass	fail	AAA: use #a980ef as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #905ceb as the background.

Brands using this color

Obsidiansecondary · #8a5cf5 · Δ1.849

Palettes built around it

8b5cf6 c4b5fd f472b6 faf7ff 2e1f47

Lavender Haze

Open in tool →

Violet and pink on lilac-white: Gen-Z friendly, while the deep plum text keeps it legible.

Playful Cool Light

Fonts for this mood

#905ceb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →

mcpConnect your agent — build around #905ceb

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 #905ceb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/905ceb-af9cc4-dfce4e-2a1f2d-e9eaf1?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