Color

#9f28fb

#9f28fb
hex#9f28fb
rgbrgb(159, 40, 251)
hslhsl(274, 96%, 57%)
oklchoklch(0.578 0.278 303.5)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1585

Colors that go with #9f28fb

Royal Blue, Olive Drab 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 →

#83fb28

#3628fb · #fb28ed

#fb9f28 · #28fb9f

Split-complementary

Open in tool →

#edfb28 · #28fb36

#fb3628 · #83fb28 · #28edfb

Contrast

#9f28fb as textRatioAAAA largeAAAFix
Aaon white
5.04:1passpassfail
  • AAA: use #7f04dc as the text (7.11:1)
Aaon black
4.17:1failpassfail
  • AA: use #a637fb as the text (4.56:1)
  • AAA: use #c173fc as the text (7.13:1)
  • AA: or shift the background to #f5f5f5 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9f28fb as the background.

Brands using this color

Fonts for this mood

#9f28fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9f28fb
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 #9f28fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9f28fb-b79cc4-c2cb62-2d1f2d-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