Color

#2345a4

#2345a4
hex#2345a4
rgbrgb(35, 69, 164)
hslhsl(224, 65%, 39%)
oklchoklch(0.426 0.159 265.2)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0729

Colors that go with #2345a4

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 →

#a48223

#2386a4 · #4123a4

#a42345 · #45a423

Split-complementary

Open in tool →

#a44123 · #86a423

#a42386 · #a48223 · #23a441

Contrast

#2345a4 as textRatioAAAA largeAAAFix
Aaon white
8.54:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #4a70d9 as the text (4.61:1)
  • AAA: use #7895e2 as the text (7.2:1)
  • AA: or shift the background to #bdbdbd (4.55:1)
  • AAA: or shift the background to #ebebeb (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2345a4 as the background.

Brands using this color

Fonts for this mood

#2345a4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2345a4
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 #2345a4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2345a4-9ca2c4-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