Color

#791bf3

#791bf3
hex#791bf3
rgbrgb(121, 27, 243)
hslhsl(266, 90%, 53%)
oklchoklch(0.52 0.274 293)
Closest name: Poisoning Purple (#7f01fe)Relative luminance 0.1132

Colors that go with #791bf3

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 →

#96f31b

#1b2af3 · #e51bf3

#f3791b · #1bf379

Split-complementary

Open in tool →

#f3e51b · #2af31b

#f31b2a · #96f31b · #1bf3e5

Contrast

#791bf3 as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
  • AAA: use #6e0ced as the text (7.15:1)
Aaon black
3.26:1failpassfail
  • AA: use #954cf6 as the text (4.64:1)
  • AAA: use #b27cf8 as the text (7.13:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #791bf3 as the background.

Brands using this color

Fonts for this mood

#791bf3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #791bf3
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 #791bf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/791bf3-b29cc4-dfd74e-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