Color

#4169fb

#4169fb
hex#4169fb
rgbrgb(65, 105, 251)
hslhsl(227, 96%, 62%)
oklchoklch(0.58 0.222 267.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1819

Colors that go with #4169fb

Charcoal, Crimson and Amber 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 →

#fbd341

#41c6fb · #7641fb

#fb4169 · #69fb41

Split-complementary

Open in tool →

#fb7641 · #c6fb41

#fb41c6 · #fbd341 · #41fb76

Contrast

#4169fb as textRatioAAAA largeAAAFix
Aaon white
4.53:1passpassfail
  • AAA: use #053afa as the text (7.02:1)
Aaon black
4.64:1passpassfail
  • AAA: use #7391fc as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4169fb as the background.

Brands using this color

Fonts for this mood

#4169fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4169fb
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 #4169fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4169fb-9ca0c4-df7a4e-221f2d-e9eff1?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