Color

#780cb6

#780cb6
hex#780cb6
rgbrgb(120, 12, 182)
hslhsl(278, 88%, 38%)
oklchoklch(0.455 0.227 306.7)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0763

Colors that go with #780cb6

Olive Green, Teal and Sea 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 →

#4ab60c

#220cb6 · #b60c9f

#b6780c · #0cb678

Split-complementary

Open in tool →

#9fb60c · #0cb622

#b6220c · #4ab60c · #0c9fb6

Contrast

#780cb6 as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #ad36f2 as the text (4.59:1)
  • AAA: use #c674f6 as the text (7.23:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (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 #780cb6 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

#780cb6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #780cb6
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 #780cb6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/780cb6-ba9cc4-bbcb62-2d1f2c-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