Color

#660eaa

#660eaa
hex#660eaa
rgbrgb(102, 14, 170)
hslhsl(274, 85%, 36%)
oklchoklch(0.421 0.213 302.2)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0604

Colors that go with #660eaa

Olive Green, Charcoal and Teal 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 →

#51aa0e

#180eaa · #aa0e9f

#aa660e · #0eaa66

Split-complementary

Open in tool →

#9faa0e · #0eaa18

#aa180e · #51aa0e · #0e9faa

Contrast

#660eaa as textRatioAAAA largeAAAFix
Aaon white
9.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.21:1failfailfail
  • AA: use #a542f0 as the text (4.64:1)
  • AAA: use #bd76f4 as the text (7.06:1)
  • AA: or shift the background to #b3b3b3 (4.54:1)
  • AAA: or shift the background to #dedede (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660eaa 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

#660eaa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660eaa
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 #660eaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660eaa-b79cc4-c2cb62-2d1f2d-eae9f1?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