Color

#2542e9

#2542e9
hex#2542e9
rgbrgb(37, 66, 233)
hslhsl(231, 82%, 53%)
oklchoklch(0.487 0.249 267)
Closest name: C64 Blue (#003aff)Relative luminance 0.1017

Colors that go with #2542e9

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 →

#e9cc25

#25a5e9 · #6a25e9

#e92542 · #42e925

Split-complementary

Open in tool →

#e96a25 · #a5e925

#e925a5 · #e9cc25 · #25e96a

Contrast

#2542e9 as textRatioAAAA largeAAAFix
Aaon white
6.92:1passpassfail
  • AAA: use #203ee9 as the text (7.17:1)
Aaon black
3.03:1failpassfail
  • AA: use #536aee as the text (4.66:1)
  • AAA: use #7d8ff2 as the text (7.08:1)
  • AA: or shift the background to #d1d1d1 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2542e9 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

#2542e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2542e9
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 #2542e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2542e9-9c9ec4-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