Color

#781df7

#781df7
hex#781df7
rgbrgb(120, 29, 247)
hslhsl(265, 93%, 54%)
oklchoklch(0.524 0.277 291.9)
Closest name: Poisoning Purple (#7f01fe)Relative luminance 0.1159

Colors that go with #781df7

Olive Green, Deep Sky Blue and Medium Slate Blue 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 →

#9cf71d

#1d2ff7 · #e51df7

#f7781d · #1df778

Split-complementary

Open in tool →

#f7e51d · #2ff71d

#f71d2f · #9cf71d · #1df7e5

Contrast

#781df7 as textRatioAAAA largeAAAFix
Aaon white
6.33:1passpassfail
  • AAA: use #6a09f1 as the text (7.19:1)
Aaon black
3.32:1failpassfail
  • AA: use #9249f8 as the text (4.53:1)
  • AAA: use #b27ffa as the text (7.31:1)
  • AA: or shift the background to #dbdbdb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #781df7 as the background.

Brands using this color

Fonts for this mood

#781df7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #781df7
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 #781df7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/781df7-b19cc4-dfd54e-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