Color

#4134ef

#4134ef
hex#4134ef
rgbrgb(65, 52, 239)
hslhsl(244, 85%, 57%)
oklchoklch(0.488 0.261 273.9)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0981

Colors that go with #4134ef

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 →

#e2ef34

#3485ef · #9e34ef

#ef4134 · #34ef41

Split-complementary

Open in tool →

#ef9e34 · #85ef34

#ef3485 · #e2ef34 · #34ef9e

Contrast

#4134ef as textRatioAAAA largeAAAFix
Aaon white
7.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.96:1failfailfail
  • AA: use #685ff2 as the text (4.51:1)
  • AAA: use #9089f5 as the text (7.08:1)
  • AA: or shift the background to #cfcfcf (4.55:1)
  • AAA: or shift the background to #ffffff (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4134ef 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

#4134ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4134ef
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 #4134ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4134ef-a39cc4-dfa24e-261f2d-e9edf1?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