Color

#b40bd5

#b40bd5
hex#b40bd5
rgbrgb(180, 11, 213)
hslhsl(290, 90%, 44%)
oklchoklch(0.565 0.268 319.3)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.1475

Colors that go with #b40bd5

Forest Green, Charcoal and Denim 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 #b40bd5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2dd50b

#4f0bd5 · #d50b92

#d5b40b · #0bd5b4

Split-complementary

Open in tool →

#92d50b · #0bd54f

#d54f0b · #2dd50b · #0b92d5

Contrast

#b40bd5 as textRatioAAAA largeAAAFix
Aaon white
5.32:1passpassfail
  • AAA: use #9309ae as the text (7.26:1)
Aaon black
3.95:1failpassfail
  • AA: use #c40ce9 as the text (4.58:1)
  • AAA: use #dd5ff7 as the text (7.05:1)
  • AA: or shift the background to #ededed (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 #b40bd5 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

#b40bd5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b40bd5
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 #b40bd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b40bd5-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