Color

#2d4bae

#2d4bae
hex#2d4bae
rgbrgb(45, 75, 174)
hslhsl(226, 59%, 43%)
oklchoklch(0.451 0.162 266.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0865

Colors that go with #2d4bae

Charcoal, Sea Green and Steel 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 →

#ae902d

#2d8cae · #4f2dae

#ae2d4b · #4bae2d

Split-complementary

Open in tool →

#ae4f2d · #8cae2d

#ae2d8c · #ae902d · #2dae4f

Contrast

#2d4bae as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #516fd2 as the text (4.55:1)
  • AAA: use #7d94de as the text (7.16:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d4bae as the background.

Brands using this color

Fonts for this mood

#2d4bae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4bae
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 #2d4bae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4bae-9ca1c4-df774e-221f2d-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