Color

#6901cb

#6901cb
hex#6901cb
rgbrgb(105, 1, 203)
hslhsl(271, 99%, 40%)
oklchoklch(0.452 0.247 295.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0734

Colors that go with #6901cb

Olive Green, Teal and Forest 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.

Real palettes that use #6901cb

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#63cb01

#0401cb · #cb01c8

#cb6901 · #01cb69

Split-complementary

Open in tool →

#c8cb01 · #01cb04

#cb0401 · #63cb01 · #01c8cb

Contrast

#6901cb as textRatioAAAA largeAAAFix
Aaon white
8.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #a13efe as the text (4.64:1)
  • AAA: use #bc76fe as the text (7.16:1)
  • AA: or shift the background to #bdbdbd (4.53:1)
  • AAA: or shift the background to #ebebeb (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 #6901cb 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

#6901cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6901cb
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 #6901cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6901cb-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