Color

#781c8d

#781c8d
hex#781c8d
rgbrgb(120, 28, 141)
hslhsl(289, 67%, 33%)
oklchoklch(0.431 0.182 319.2)
Closest name: Ultraberry (#770088)Relative luminance 0.0675

Colors that go with #781c8d

Forest Green, Blue Violet 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 →

#308d1c

#3f1c8d · #8d1c69

#8d781c · #1c8d78

Split-complementary

Open in tool →

#698d1c · #1c8d3f

#8d3f1c · #308d1c · #1c698d

Contrast

#781c8d as textRatioAAAA largeAAAFix
Aaon white
8.94:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #b933d7 as the text (4.52:1)
  • AAA: use #cf72e3 as the text (7.17:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #781c8d 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

#781c8d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #781c8d
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 #781c8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/781c8d-be9fc1-a8cb62-2d1f2a-ece9f1?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