Color

#b555d8

#b555d8
hex#b555d8
rgbrgb(181, 85, 216)
hslhsl(284, 63%, 59%)
oklchoklch(0.622 0.205 316)
Closest name: mediumorchid (#ba55d3)Relative luminance 0.2128

Colors that go with #b555d8

Olive Drab, 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#78d855

#7355d8 · #d855ba

#d8b555 · #55d8b5

Split-complementary

Open in tool →

#bad855 · #55d873

#d87355 · #78d855 · #55bad8

Contrast

#b555d8 as textRatioAAAA largeAAAFix
Aaon white
4:1failpassfail
  • AA: use #ae44d5 as the text (4.58:1)
  • AAA: use #8727aa as the text (7.24:1)
  • AA: or shift the background to #141414 (4.61:1)
Aaon black
5.26:1passpassfail
  • AAA: use #c476e0 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b555d8 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

#b555d8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b555d8
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 #b555d8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b555d8-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