Color

#b251d2

#b251d2
hex#b251d2
rgbrgb(178, 81, 210)
hslhsl(285, 59%, 57%)
oklchoklch(0.61 0.204 316.9)
Closest name: mediumorchid (#ba55d3)Relative luminance 0.2

Colors that go with #b251d2

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#71d251

#7151d2 · #d251b2

#d2b251 · #51d2b2

Split-complementary

Open in tool →

#b2d251 · #51d271

#d27151 · #71d251 · #51b2d2

Contrast

#b251d2 as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #ae49d0 as the text (4.5:1)
  • AAA: use #872ba6 as the text (7.18:1)
  • AA: or shift the background to #0f0f0f (4.56:1)
Aaon black
5:1passpassfail
  • AAA: use #c479dc as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b251d2 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

#b251d2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b251d2
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 #b251d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b251d2-bc9fc1-afcb62-2d1f2b-ebe9f1?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