Color

#2a4cd5

#2a4cd5
hex#2a4cd5
rgbrgb(42, 76, 213)
hslhsl(228, 67%, 50%)
oklchoklch(0.486 0.213 266.8)
Closest name: Denim (#1560bd)Relative luminance 0.1047

Colors that go with #2a4cd5

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 #2a4cd5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d5b32a

#2aa2d5 · #5d2ad5

#d52a4c · #4cd52a

Split-complementary

Open in tool →

#d55d2a · #a2d52a

#d52aa2 · #d5b32a · #2ad55d

Contrast

#2a4cd5 as textRatioAAAA largeAAAFix
Aaon white
6.79:1passpassfail
  • AAA: use #2849cc as the text (7.2:1)
Aaon black
3.09:1failpassfail
  • AA: use #506cdc as the text (4.52:1)
  • AAA: use #7f94e6 as the text (7.28:1)
  • AA: or shift the background to #d4d4d4 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a4cd5 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2a4cd5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a4cd5
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 #2a4cd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a4cd5-9c9fc4-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