Color

#0641e5

#0641e5
hex#0641e5
rgbrgb(6, 65, 229)
hslhsl(224, 95%, 46%)
oklchoklch(0.475 0.25 263.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.0948

Colors that go with #0641e5

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 →

#e5a906

#06b1e5 · #3a06e5

#e50641 · #41e506

Split-complementary

Open in tool →

#e53a06 · #b1e506

#e506b1 · #e5a906 · #06e53a

Contrast

#0641e5 as textRatioAAAA largeAAAFix
Aaon white
7.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.9:1failfailfail
  • AA: use #3368fa as the text (4.5:1)
  • AAA: use #6a91fb as the text (7.06:1)
  • AA: or shift the background to #cccccc (4.52:1)
  • AAA: or shift the background to #fcfcfc (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0641e5 as the background.

Brands using this color

Fonts for this mood

#0641e5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0641e5
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 #0641e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0641e5-9ca2c4-df724e-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