Color

#642f83

#642f83
hex#642f83
rgbrgb(100, 47, 131)
hslhsl(278, 47%, 35%)
oklchoklch(0.416 0.14 310.8)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0638

Colors that go with #642f83

Tomato, Sea Green and Charcoal 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 →

#4e832f

#3a2f83 · #832f78

#83642f · #2f8364

Split-complementary

Open in tool →

#78832f · #2f833a

#833a2f · #4e832f · #2f7883

Contrast

#642f83 as textRatioAAAA largeAAAFix
Aaon white
9.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.28:1failfailfail
  • AA: use #9b56c2 as the text (4.5:1)
  • AAA: use #b583d2 as the text (7.14:1)
  • AA: or shift the background to #b8b8b8 (4.65:1)
  • AAA: or shift the background to #e3e3e3 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #642f83 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

#642f83 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #642f83
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 #642f83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/642f83-ba9cc4-bbcb62-2d1f2c-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