Color

#2545fe

#2545fe
hex#2545fe
rgbrgb(37, 69, 254)
hslhsl(231, 99%, 57%)
oklchoklch(0.513 0.27 266.6)
Closest name: C64 Blue (#003aff)Relative luminance 0.1181

Colors that go with #2545fe

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 →

#fedd25

#25b2fe · #7125fe

#fe2545 · #45fe25

Split-complementary

Open in tool →

#fe7125 · #b2fe25

#fe25b2 · #fedd25 · #25fe71

Contrast

#2545fe as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #1034fe as the text (7.13:1)
Aaon black
3.36:1failpassfail
  • AA: use #4864fe as the text (4.53:1)
  • AAA: use #7b8ffe as the text (7.2:1)
  • AA: or shift the background to #dbdbdb (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 #2545fe as the background.

Brands using this color

Fonts for this mood

#2545fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2545fe
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 #2545fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2545fe-9c9ec4-df834e-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