Color

#660c97

#660c97
hex#660c97
rgbrgb(102, 12, 151)
hslhsl(279, 85%, 32%)
oklchoklch(0.403 0.197 308)
Closest name: Extraviolet (#661188)Relative luminance 0.0532

Colors that go with #660c97

Olive Drab, 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 →

#3d970c

#210c97 · #970c82

#97660c · #0c9766

Split-complementary

Open in tool →

#82970c · #0c9721

#97210c · #3d970c · #0c8297

Contrast

#660c97 as textRatioAAAA largeAAAFix
Aaon white
10.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.06:1failfailfail
  • AA: use #ad34ef as the text (4.51:1)
  • AAA: use #c671f4 as the text (7.07:1)
  • AA: or shift the background to #adadad (4.53:1)
  • AAA: or shift the background to #d9d9d9 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660c97 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

#660c97 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660c97
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 #660c97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660c97-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