Color

#4111bb

#4111bb
hex#4111bb
rgbrgb(65, 17, 187)
hslhsl(257, 83%, 40%)
oklchoklch(0.399 0.228 281.5)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0511

Colors that go with #4111bb

Charcoal, Blue and Cornflower Blue 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 →

#8bbb11

#1136bb · #9611bb

#bb4111 · #11bb41

Split-complementary

Open in tool →

#bb9611 · #36bb11

#bb1136 · #8bbb11 · #11bb96

Contrast

#4111bb as textRatioAAAA largeAAAFix
Aaon white
10.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #8257ef as the text (4.56:1)
  • AAA: use #a586f4 as the text (7.32:1)
  • AA: or shift the background to #ababab (4.52:1)
  • AAA: or shift the background to #d4d4d4 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4111bb 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

#4111bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4111bb
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 #4111bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4111bb-ac9cc4-dfc24e-291f2d-e9ebf1?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