Color

#b333d7

#b333d7
hex#b333d7
rgbrgb(179, 51, 215)
hslhsl(287, 67%, 52%)
oklchoklch(0.584 0.244 317.5)
Closest name: Magenta Affair (#aa44dd)Relative luminance 0.1686

Colors that go with #b333d7

Forest Green, Sea Green 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.

Real palettes that use #b333d7

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#56d733

#6133d7 · #d733a8

#d7b333 · #33d7b3

Split-complementary

Open in tool →

#a8d733 · #33d761

#d76133 · #56d733 · #33a8d7

Contrast

#b333d7 as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
  • AAA: use #8d22aa as the text (7.14:1)
Aaon black
4.37:1failpassfail
  • AA: use #b63bd8 as the text (4.61:1)
  • AAA: use #cb72e3 as the text (7.06:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b333d7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#b333d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b333d7
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 #b333d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b333d7-bd9fc1-abcb62-2d1f2a-ece9f1?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