Color

#2537fe

#2537fe
hex#2537fe
rgbrgb(37, 55, 254)
hslhsl(235, 99%, 57%)
oklchoklch(0.495 0.282 267.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.1028

Colors that go with #2537fe

Charcoal, Crimson and Cobalt Blue 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 →

#feec25

#25a3fe · #7f25fe

#fe2537 · #37fe25

Split-complementary

Open in tool →

#fe7f25 · #a3fe25

#fe25a3 · #feec25 · #25fe7f

Contrast

#2537fe as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #2032fe as the text (7.12:1)
Aaon black
3.06:1failpassfail
  • AA: use #5865fe as the text (4.71:1)
  • AAA: use #808bfe as the text (7.04:1)
  • AA: or shift the background to #d4d4d4 (4.64:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2537fe as the background.

Brands using this color

Fonts for this mood

#2537fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2537fe
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 #2537fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2537fe-9e9cc4-df8d4e-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