Color

#640f85

#640f85
hex#640f85
rgbrgb(100, 15, 133)
hslhsl(283, 80%, 29%)
oklchoklch(0.386 0.179 313.3)
Closest name: Extraviolet (#661188)Relative luminance 0.0474

Colors that go with #640f85

Forest Green, Sea Green and Olive 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 →

#30850f

#280f85 · #850f6b

#85640f · #0f8564

Split-complementary

Open in tool →

#6b850f · #0f8528

#85280f · #30850f · #0f6b85

Contrast

#640f85 as textRatioAAAA largeAAAFix
Aaon white
10.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #b430e8 as the text (4.53:1)
  • AAA: use #cb71ef as the text (7.15:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (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 #640f85 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

#640f85 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #640f85
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 #640f85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/640f85-bb9fc1-b2cb62-2d1f2b-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