Color

#6429db

#6429db
hex#6429db
rgbrgb(100, 41, 219)
hslhsl(260, 71%, 51%)
oklchoklch(0.484 0.243 288.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0941

Colors that go with #6429db

Royal Blue, Charcoal and Cobalt 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 →

#a0db29

#2947db · #bd29db

#db6429 · #29db64

Split-complementary

Open in tool →

#dbbd29 · #47db29

#db2947 · #a0db29 · #29dbbd

Contrast

#6429db as textRatioAAAA largeAAAFix
Aaon white
7.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #8759e3 as the text (4.57:1)
  • AAA: use #a785ea as the text (7.19:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6429db as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#6429db reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6429db
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 #6429db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6429db-ae9cc4-dfc94e-2a1f2d-e9ebf1?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