Color

#6429bc

#6429bc
hex#6429bc
rgbrgb(100, 41, 188)
hslhsl(264, 64%, 45%)
oklchoklch(0.455 0.21 294.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0793

Colors that go with #6429bc

Royal Blue, Charcoal and Olive 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#81bc29

#2938bc · #ae29bc

#bc6429 · #29bc64

Split-complementary

Open in tool →

#bcae29 · #38bc29

#bc2938 · #81bc29 · #29bcae

Contrast

#6429bc as textRatioAAAA largeAAAFix
Aaon white
8.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #8c58da as the text (4.52:1)
  • AAA: use #ac86e4 as the text (7.28:1)
  • AA: or shift the background to #c2c2c2 (4.56:1)
  • AAA: or shift the background to #f0f0f0 (7.13:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/6429bc-b19cc4-dfd34e-2b1f2d-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