Color

#9129fa

#9129fa
hex#9129fa
rgbrgb(145, 41, 250)
hslhsl(270, 95%, 57%)
oklchoklch(0.561 0.275 299.1)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1451

Colors that go with #9129fa

Olive Green, Charcoal and Royal 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 →

#91fa29

#2929fa · #fa29fa

#fa9129 · #29fa91

Split-complementary

Open in tool →

#fafa29 · #29fa29

#fa2929 · #91fa29 · #29fafa

Contrast

#9129fa as textRatioAAAA largeAAAFix
Aaon white
5.38:1passpassfail
  • AAA: use #7506e5 as the text (7.21:1)
Aaon black
3.9:1failpassfail
  • AA: use #9e42fa as the text (4.61:1)
  • AAA: use #ba79fc as the text (7.23:1)
  • AA: or shift the background to #ebebeb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9129fa as the background.

Brands using this color

Fonts for this mood

#9129fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9129fa
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 #9129fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9129fa-b59cc4-c9cb62-2c1f2d-eae9f1?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