Color

#6b13be

#6b13be
hex#6b13be
rgbrgb(107, 19, 190)
hslhsl(271, 82%, 41%)
oklchoklch(0.448 0.229 298.9)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0731

Colors that go with #6b13be

Olive Green, Charcoal and Royal Blue 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 →

#66be13

#1613be · #be13bb

#be6b13 · #13be6b

Split-complementary

Open in tool →

#bbbe13 · #13be16

#be1613 · #66be13 · #13bbbe

Contrast

#6b13be as textRatioAAAA largeAAAFix
Aaon white
8.53:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #9e4aed as the text (4.66:1)
  • AAA: use #ba7df2 as the text (7.3:1)
  • AA: or shift the background to #bdbdbd (4.54:1)
  • AAA: or shift the background to #ebebeb (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b13be 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

#6b13be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6b13be
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 #6b13be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b13be-b59cc4-c7cb62-2c1f2d-eae9f1?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