Color

#4081e2

#4081e2
hex#4081e2
rgbrgb(64, 129, 226)
hslhsl(216, 74%, 57%)
oklchoklch(0.61 0.162 258.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2228

Colors that go with #4081e2

Charcoal, Copper 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 →

#e2a240

#40d2e2 · #5040e2

#e24081 · #81e240

Split-complementary

Open in tool →

#e25040 · #d2e240

#e240d2 · #e2a240 · #40e250

Contrast

#4081e2 as textRatioAAAA largeAAAFix
Aaon white
3.85:1failpassfail
  • AA: use #2a72df as the text (4.59:1)
  • AAA: use #1a55ad as the text (7.13:1)
  • AA: or shift the background to #1a1a1a (4.52:1)
Aaon black
5.46:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4081e2 as the background.

Brands using this color

Fonts for this mood

#4081e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4081e2
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 #4081e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4081e2-9ca7c4-df5f4e-201f2d-e9f0f1?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