Color

#660d77

#660d77
hex#660d77
rgbrgb(102, 13, 119)
hslhsl(290, 80%, 26%)
oklchoklch(0.377 0.169 320.1)
Closest name: Extraviolet (#661188)Relative luminance 0.0444

Colors that go with #660d77

Forest Green, Olive Green and Sea Green 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 →

#1f770d

#310d77 · #770d54

#77660d · #0d7766

Split-complementary

Open in tool →

#54770d · #0d7731

#77310d · #1f770d · #0d5477

Contrast

#660d77 as textRatioAAAA largeAAAFix
Aaon white
11.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #c319e6 as the text (4.6:1)
  • AAA: use #d868ee as the text (7.13:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660d77 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

#660d77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660d77
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 #660d77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660d77-bf9fc1-a6cb62-2d1f29-ece9f1?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