Color

#780f9f

#780f9f
hex#780f9f
rgbrgb(120, 15, 159)
hslhsl(284, 83%, 34%)
oklchoklch(0.437 0.207 313.4)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0684

Colors that go with #780f9f

Denim, Forest Green and Charcoal 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 →

#359f0f

#300f9f · #9f0f7d

#9f780f · #0f9f78

Split-complementary

Open in tool →

#7d9f0f · #0f9f30

#9f300f · #359f0f · #0f7d9f

Contrast

#780f9f as textRatioAAAA largeAAAFix
Aaon white
8.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #b728eb as the text (4.52:1)
  • AAA: use #cf6ef2 as the text (7.17:1)
  • AA: or shift the background to #bababa (4.57:1)
  • AAA: or shift the background to #e6e6e6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #780f9f as the background.

Brands using this color

Fonts for this mood

#780f9f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #780f9f
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 #780f9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/780f9f-bc9fc1-b1cb62-2d1f2b-ebe9f1?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