Color

#6b3da4

#6b3da4
hex#6b3da4
rgbrgb(107, 61, 164)
hslhsl(267, 46%, 44%)
oklchoklch(0.468 0.16 301)
Closest name: rebeccapurple (#663399)Relative luminance 0.0914

Colors that go with #6b3da4

Charcoal, Sea Green and Crimson 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 →

#75a43d

#3d42a4 · #9f3da4

#a46b3d · #3da46b

Split-complementary

Open in tool →

#a49f3d · #42a43d

#a43d42 · #75a43d · #3da49f

Contrast

#6b3da4 as textRatioAAAA largeAAAFix
Aaon white
7.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #8c5fc4 as the text (4.55:1)
  • AAA: use #aa88d3 as the text (7.17:1)
  • AA: or shift the background to #cccccc (4.62:1)
  • AAA: or shift the background to #fafafa (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b3da4 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

#6b3da4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6b3da4
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 #6b3da4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b3da4-b39cc4-dfda4e-2c1f2d-e9eaf1?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