Color

#2566fe

#2566fe
hex#2566fe
rgbrgb(37, 102, 254)
hslhsl(222, 99%, 57%)
oklchoklch(0.568 0.235 263.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1705

Colors that go with #2566fe

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 →

#febd25

#25d2fe · #5025fe

#fe2566 · #66fe25

Split-complementary

Open in tool →

#fe5025 · #d2fe25

#fe25d2 · #febd25 · #25fe50

Contrast

#2566fe as textRatioAAAA largeAAAFix
Aaon white
4.76:1passpassfail
  • AAA: use #0145e4 as the text (7.06:1)
Aaon black
4.41:1failpassfail
  • AA: use #2a69fe as the text (4.55:1)
  • AAA: use #6291fe as the text (7:1)
  • AA: or shift the background to #fafafa (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2566fe as the background.

Brands using this color

Fonts for this mood

#2566fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2566fe
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 #2566fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2566fe-9ca3c4-df6e4e-211f2d-e9eff1?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