Color

#9b25ef

#9b25ef
hex#9b25ef
rgbrgb(155, 37, 239)
hslhsl(275, 86%, 54%)
oklchoklch(0.561 0.269 304.8)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1452

Colors that go with #9b25ef

Olive Green, Charcoal and Denim 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 →

#79ef25

#3625ef · #ef25de

#ef9b25 · #25ef9b

Split-complementary

Open in tool →

#deef25 · #25ef36

#ef3625 · #79ef25 · #25deef

Contrast

#9b25ef as textRatioAAAA largeAAAFix
Aaon white
5.38:1passpassfail
Aaon black
3.9:1failpassfail
  • AA: use #a53df0 as the text (4.53:1)
  • AAA: use #c075f5 as the text (7.1:1)
  • 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 #9b25ef as the background.

Brands using this color

Fonts for this mood

#9b25ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9b25ef
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 #9b25ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9b25ef-b89cc4-c0cb62-2d1f2d-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