Color

#b51ded

#b51ded
hex#b51ded
rgbrgb(181, 29, 237)
hslhsl(284, 85%, 52%)
oklchoklch(0.589 0.278 313.6)
Closest name: Magento (#bf3cff)Relative luminance 0.1682

Colors that go with #b51ded

Olive Drab, Charcoal and Dark Cyan 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#54ed1d

#4d1ded · #ed1dbc

#edb51d · #1dedb5

Split-complementary

Open in tool →

#bced1d · #1ded4d

#ed4d1d · #54ed1d · #1dbced

Contrast

#b51ded as textRatioAAAA largeAAAFix
Aaon white
4.81:1passpassfail
  • AAA: use #8e0fbd as the text (7.11:1)
Aaon black
4.36:1failpassfail
  • AA: use #b826ed as the text (4.54:1)
  • AAA: use #cf6df3 as the text (7.13:1)
  • AA: or shift the background to #fafafa (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b51ded 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

#b51ded reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b51ded
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 #b51ded and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b51ded-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