Color

#b140d4

#b140d4
hex#b140d4
rgbrgb(177, 64, 212)
hslhsl(286, 63%, 54%)
oklchoklch(0.591 0.227 317)
Closest name: Magenta Affair (#aa44dd)Relative luminance 0.1777

Colors that go with #b140d4

Olive Drab, 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 #b140d4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#62d440

#6740d4 · #d440ac

#d4b140 · #40d4b1

Split-complementary

Open in tool →

#acd440 · #40d467

#d46740 · #62d440 · #40acd4

Contrast

#b140d4 as textRatioAAAA largeAAAFix
Aaon white
4.61:1passpassfail
  • AAA: use #8c27aa as the text (7.03:1)
Aaon black
4.55:1passpassfail
  • AAA: use #c776e0 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b140d4 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

#b140d4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b140d4
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 #b140d4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b140d4-bd9fc1-adcb62-2d1f2a-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