Color

#b103d8

#b103d8
hex#b103d8
rgbrgb(177, 3, 216)
hslhsl(289, 97%, 43%)
oklchoklch(0.561 0.271 317.7)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.1437

Colors that go with #b103d8

Forest Green, Charcoal and Denim 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 #b103d8

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2ad803

#4703d8 · #d80395

#d8b103 · #03d8b1

Split-complementary

Open in tool →

#95d803 · #03d847

#d84703 · #2ad803 · #0395d8

Contrast

#b103d8 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #9403b5 as the text (7.14:1)
Aaon black
3.87:1failpassfail
  • AA: use #c604f1 as the text (4.69:1)
  • AAA: use #e05efd as the text (7.19:1)
  • AA: or shift the background to #ebebeb (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b103d8 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

#b103d8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b103d8
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 #b103d8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b103d8-be9fc1-a8cb62-2d1f2a-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