Color

#343e50

#343e50
hex#343e50
rgbrgb(52, 62, 80)
hslhsl(219, 21%, 26%)
oklchoklch(0.362 0.034 262.1)
Closest name: Charcoal (#36454f)Relative luminance 0.0475

Colors that go with #343e50

Dark Olive Green, Sea Green and Teal 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 →

#504634

#344c50 · #393450

#50343e · #3e5034

Split-complementary

Open in tool →

#503934 · #4c5034

#50344c · #504634 · #345039

Contrast

#343e50 as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #637597 as the text (4.52:1)
  • AAA: use #8a98b2 as the text (7.21:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #343e50 as the background.

Brands using this color

Fonts for this mood

#343e50 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #343e50
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 #343e50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/343e50-9ca5c4-df664e-211f2d-e9f0f1?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