Color

#2e42ef

#2e42ef
hex#2e42ef
rgbrgb(46, 66, 239)
hslhsl(234, 86%, 56%)
oklchoklch(0.497 0.254 268.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1071

Colors that go with #2e42ef

Slate Gray, Olive Green and Charcoal 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.

Real palettes that use #2e42ef

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#efdc2e

#2ea2ef · #7c2eef

#ef2e42 · #42ef2e

Split-complementary

Open in tool →

#ef7c2e · #a2ef2e

#ef2ea2 · #efdc2e · #2eef7c

Contrast

#2e42ef as textRatioAAAA largeAAAFix
Aaon white
6.68:1passpassfail
  • AAA: use #2539ef as the text (7.22:1)
Aaon black
3.14:1failpassfail
  • AA: use #5968f3 as the text (4.7:1)
  • AAA: use #848ff6 as the text (7.24:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e42ef 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

#2e42ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e42ef
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 #2e42ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e42ef-9d9cc4-df8a4e-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