Color

#b531fc

#b531fc
hex#b531fc
rgbrgb(181, 49, 252)
hslhsl(279, 97%, 59%)
oklchoklch(0.612 0.277 309.6)
Closest name: Magento (#bf3cff)Relative luminance 0.1905

Colors that go with #b531fc

Olive Drab, Charcoal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#78fc31

#4f31fc · #fc31dd

#fcb531 · #31fcb5

Split-complementary

Open in tool →

#ddfc31 · #31fc4f

#fc4f31 · #78fc31 · #31ddfc

Contrast

#b531fc as textRatioAAAA largeAAAFix
Aaon white
4.37:1failpassfail
  • AA: use #b127fc as the text (4.6:1)
  • AAA: use #8703ce as the text (7.16:1)
  • AA: or shift the background to #0a0a0a (4.53:1)
Aaon black
4.81:1passpassfail
  • AAA: use #cb6dfd as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b531fc 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

#b531fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b531fc
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 #b531fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b531fc-b99fc1-b9cb62-2d1f2c-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