Color

#9b3dff

#9b3dff
hex#9b3dff
rgbrgb(155, 61, 255)
hslhsl(269, 100%, 62%)
oklchoklch(0.593 0.265 300.2)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1753

Colors that go with #9b3dff

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 →

#a1ff3d

#3d40ff · #fc3dff

#ff9b3d · #3dff9b

Split-complementary

Open in tool →

#fffc3d · #40ff3d

#ff3d40 · #a1ff3d · #3dfffc

Contrast

#9b3dff as textRatioAAAA largeAAAFix
Aaon white
4.66:1passpassfail
  • AAA: use #7100eb as the text (7.24:1)
Aaon black
4.51:1passpassfail
  • AAA: use #b875ff as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9b3dff as the background.

Brands using this color

Fonts for this mood

#9b3dff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #9b3dff
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 #9b3dff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9b3dff-b49cc4-cbcb62-2c1f2d-e9e9f1?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