Color

#2d4ed2

#2d4ed2
hex#2d4ed2
rgbrgb(45, 78, 210)
hslhsl(228, 65%, 50%)
oklchoklch(0.488 0.206 267.1)
Closest name: Denim (#1560bd)Relative luminance 0.1066

Colors that go with #2d4ed2

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 #2d4ed2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d2b12d

#2da1d2 · #5e2dd2

#d22d4e · #4ed22d

Split-complementary

Open in tool →

#d25e2d · #a1d22d

#d22da1 · #d2b12d · #2dd25e

Contrast

#2d4ed2 as textRatioAAAA largeAAAFix
Aaon white
6.71:1passpassfail
  • AAA: use #2b4bca as the text (7.09:1)
Aaon black
3.13:1failpassfail
  • AA: use #526eda as the text (4.6:1)
  • AAA: use #7d91e3 as the text (7.03:1)
  • AA: or shift the background to #d4d4d4 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d4ed2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2d4ed2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4ed2
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 #2d4ed2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4ed2-9c9fc4-df7c4e-231f2d-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