Color

#661ebe

#661ebe
hex#661ebe
rgbrgb(102, 30, 190)
hslhsl(267, 73%, 43%)
oklchoklch(0.449 0.222 296.1)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0747

Colors that go with #661ebe

Olive Green, Charcoal and Midnight Blue 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 →

#76be1e

#1e26be · #b61ebe

#be661e · #1ebe66

Split-complementary

Open in tool →

#beb61e · #26be1e

#be1e26 · #76be1e · #1ebeb6

Contrast

#661ebe as textRatioAAAA largeAAAFix
Aaon white
8.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #9453e4 as the text (4.62:1)
  • AAA: use #b07feb as the text (7.08:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #661ebe 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

#661ebe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #661ebe
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 #661ebe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/661ebe-b39cc4-dfda4e-2c1f2d-e9eaf1?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