Color

#2e51ea

#2e51ea
hex#2e51ea
rgbrgb(46, 81, 234)
hslhsl(229, 82%, 55%)
oklchoklch(0.515 0.232 267.1)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1241

Colors that go with #2e51ea

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 →

#eac82e

#2eafea · #6a2eea

#ea2e51 · #51ea2e

Split-complementary

Open in tool →

#ea6a2e · #afea2e

#ea2eaf · #eac82e · #2eea6a

Contrast

#2e51ea as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #1c41e9 as the text (7.04:1)
Aaon black
3.48:1failpassfail
  • AA: use #4f6cee as the text (4.71:1)
  • AAA: use #788ff2 as the text (7.01:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e51ea 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

#2e51ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e51ea
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 #2e51ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e51ea-9c9fc4-df7e4e-231f2d-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