Color

#6d4dcb

#6d4dcb
hex#6d4dcb
rgbrgb(109, 77, 203)
hslhsl(255, 55%, 55%)
oklchoklch(0.523 0.186 290.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1287

Colors that go with #6d4dcb

Charcoal, Sea Green and Amber 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 →

#accb4d

#4d6dcb · #ac4dcb

#cb6d4d · #4dcb6d

Split-complementary

Open in tool →

#cbac4d · #6dcb4d

#cb4d6d · #accb4d · #4dcbac

Contrast

#6d4dcb as textRatioAAAA largeAAAFix
Aaon white
5.88:1passpassfail
  • AAA: use #603dc7 as the text (7.02:1)
Aaon black
3.57:1failpassfail
  • AA: use #7d61d1 as the text (4.5:1)
  • AAA: use #a18cde as the text (7.32:1)
  • AA: or shift the background to #e3e3e3 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6d4dcb as the background.

Brands using this color

Fonts for this mood

#6d4dcb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6d4dcb
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 #6d4dcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6d4dcb-ab9cc4-dfbd4e-291f2d-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