Color

#4256eb

#4256eb
hex#4256eb
rgbrgb(66, 86, 235)
hslhsl(233, 81%, 59%)
oklchoklch(0.534 0.223 270.7)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1381

Colors that go with #4256eb

Charcoal, Sea Green 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 →

#ebd742

#42aaeb · #8342eb

#eb4256 · #56eb42

Split-complementary

Open in tool →

#eb8342 · #aaeb42

#eb42aa · #ebd742 · #42eb83

Contrast

#4256eb as textRatioAAAA largeAAAFix
Aaon white
5.58:1passpassfail
  • AAA: use #263de8 as the text (7.2:1)
Aaon black
3.76:1failpassfail
  • AA: use #5466ed as the text (4.5:1)
  • AAA: use #828ff2 as the text (7.16:1)
  • AA: or shift the background to #e8e8e8 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4256eb as the background.

Brands using this color

Fonts for this mood

#4256eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4256eb
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 #4256eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4256eb-9c9cc4-df884e-241f2d-e9eef1?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