Color

#2643fd

#2643fd
hex#2643fd
rgbrgb(38, 67, 253)
hslhsl(232, 98%, 57%)
oklchoklch(0.51 0.271 266.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1152

Colors that go with #2643fd

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 →

#fde026

#26aefd · #7526fd

#fd2643 · #43fd26

Split-complementary

Open in tool →

#fd7526 · #aefd26

#fd26ae · #fde026 · #26fd75

Contrast

#2643fd as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #1735fd as the text (7.08:1)
Aaon black
3.3:1failpassfail
  • AA: use #4e66fd as the text (4.64:1)
  • AAA: use #7c8dfe as the text (7.1:1)
  • AA: or shift the background to #d9d9d9 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2643fd as the background.

Brands using this color

Fonts for this mood

#2643fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2643fd
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 #2643fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2643fd-9c9dc4-df864e-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