Color

#bb40d4

#bb40d4
hex#bb40d4
rgbrgb(187, 64, 212)
hslhsl(290, 63%, 54%)
oklchoklch(0.605 0.231 320.3)
Closest name: Magenta Affair (#aa44dd)Relative luminance 0.1899

Colors that go with #bb40d4

Olive Drab, Dark Cyan and Charcoal 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 #bb40d4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#58d440

#7140d4 · #d440a2

#d4bb40 · #40d4bb

Split-complementary

Open in tool →

#a2d440 · #40d471

#d47140 · #58d440 · #40a2d4

Contrast

#bb40d4 as textRatioAAAA largeAAAFix
Aaon white
4.38:1failpassfail
  • AA: use #b93cd3 as the text (4.52:1)
  • AAA: use #8d25a2 as the text (7.19:1)
  • AA: or shift the background to #0a0a0a (4.52:1)
Aaon black
4.8:1passpassfail
  • AAA: use #cd72df as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb40d4 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

#bb40d4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb40d4
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 #bb40d4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb40d4-bf9fc1-a6cb62-2d1f29-ece9f1?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