Color

#2d4bd2

#2d4bd2
hex#2d4bd2
rgbrgb(45, 75, 210)
hslhsl(229, 65%, 50%)
oklchoklch(0.483 0.21 267.6)
Closest name: Blurple (#5539cc)Relative luminance 0.1024

Colors that go with #2d4bd2

Charcoal, Sea Green 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.

Real palettes that use #2d4bd2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d2b42d

#2d9ed2 · #612dd2

#d22d4b · #4bd22d

Split-complementary

Open in tool →

#d2612d · #9ed22d

#d22d9e · #d2b42d · #2dd261

Contrast

#2d4bd2 as textRatioAAAA largeAAAFix
Aaon white
6.89:1passpassfail
  • AAA: use #2c4ace as the text (7.05:1)
Aaon black
3.05:1failpassfail
  • AA: use #576fdb as the text (4.7:1)
  • AAA: use #8193e4 as the text (7.23:1)
  • AA: or shift the background to #d1d1d1 (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 #2d4bd2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2d4bd2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4bd2
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 #2d4bd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4bd2-9c9fc4-df7e4e-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