Color

#bb40e7

#bb40e7
hex#bb40e7
rgbrgb(187, 64, 231)
hslhsl(284, 78%, 58%)
oklchoklch(0.617 0.247 315.4)
Closest name: Magenta Affair (#aa44dd)Relative luminance 0.2

Colors that go with #bb40e7

Olive Drab, Dark Cyan and Olive Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #bb40e7

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6de740

#6740e7 · #e740c0

#e7bb40 · #40e7bb

Split-complementary

Open in tool →

#c0e740 · #40e767

#e76740 · #6de740 · #40c0e7

Contrast

#bb40e7 as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #b633e6 as the text (4.56:1)
  • AAA: use #8f17ba as the text (7:1)
  • AA: or shift the background to #0f0f0f (4.56:1)
Aaon black
5:1passpassfail
  • AAA: use #cd72ee as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb40e7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#bb40e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb40e7
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bb40e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb40e7-bc9fc1-b1cb62-2d1f2b-ebe9f1?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