Color

#b539ea

#b539ea
hex#b539ea
rgbrgb(181, 57, 234)
hslhsl(282, 81%, 57%)
oklchoklch(0.605 0.255 313.2)
Closest name: Magenta Affair (#aa44dd)Relative luminance 0.1869

Colors that go with #b539ea

Olive Drab, Sea Green 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6eea39

#5c39ea · #ea39c7

#eab539 · #39eab5

Split-complementary

Open in tool →

#c7ea39 · #39ea5c

#ea5c39 · #6eea39 · #39c7ea

Contrast

#b539ea as textRatioAAAA largeAAAFix
Aaon white
4.43:1failpassfail
  • AA: use #b334ea as the text (4.57:1)
  • AAA: use #8a14bd as the text (7.2:1)
  • AA: or shift the background to #080808 (4.52:1)
Aaon black
4.74:1passpassfail
  • AAA: use #ca70f0 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b539ea 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

#b539ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b539ea
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 #b539ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b539ea-ba9fc1-b4cb62-2d1f2b-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