Color

#4111df

#4111df
hex#4111df
rgbrgb(65, 17, 223)
hslhsl(254, 86%, 47%)
oklchoklch(0.442 0.265 276.8)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0685

Colors that go with #4111df

Charcoal, Cobalt 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 →

#afdf11

#1148df · #a811df

#df4111 · #11df41

Split-complementary

Open in tool →

#dfa811 · #48df11

#df1148 · #afdf11 · #11dfa8

Contrast

#4111df as textRatioAAAA largeAAAFix
Aaon white
8.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #7d59f3 as the text (4.6:1)
  • AAA: use #9e84f6 as the text (7.09:1)
  • AA: or shift the background to #bababa (4.56:1)
  • AAA: or shift the background to #e6e6e6 (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 #4111df 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

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

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

tool url/palettes/new/4111df-aa9cc4-dfbb4e-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