Color

#2a4dac

#2a4dac
hex#2a4dac
rgbrgb(42, 77, 172)
hslhsl(224, 61%, 42%)
oklchoklch(0.452 0.158 265.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0878

Colors that go with #2a4dac

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 →

#ac8a2a

#2a8eac · #482aac

#ac2a4d · #4dac2a

Split-complementary

Open in tool →

#ac482a · #8eac2a

#ac2a8e · #ac8a2a · #2aac48

Contrast

#2a4dac as textRatioAAAA largeAAAFix
Aaon white
7.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.76:1failfailfail
  • AA: use #4a6fd3 as the text (4.51:1)
  • AAA: use #7893de as the text (7.03:1)
  • AA: or shift the background to #c7c7c7 (4.51:1)
  • AAA: or shift the background to #f7f7f7 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a4dac as the background.

Brands using this color

Fonts for this mood

#2a4dac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a4dac
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 #2a4dac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a4dac-9ca2c4-df724e-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