Color

#31343a

#31343a
hex#31343a
rgbrgb(49, 52, 58)
hslhsl(220, 8%, 21%)
oklchoklch(0.324 0.011 264.4)
Closest name: Dark Charcoal (#333232)Relative luminance 0.0341

Colors that go with #31343a

Amber, Blue and Blush Pink 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 →

#3a3731

#31383a · #33313a

#3a3134 · #343a31

Split-complementary

Open in tool →

#3a3331 · #383a31

#3a3138 · #3a3731 · #313a33

Contrast

#31343a as textRatioAAAA largeAAAFix
Aaon white
12.48:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #6e7581 as the text (4.52:1)
  • AAA: use #9196a1 as the text (7.08:1)
  • AA: or shift the background to #9c9c9c (4.55:1)
  • AAA: or shift the background to #c2c2c2 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31343a as the background.

Brands using this color

Fonts for this mood

#31343a reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31343a
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 #31343a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31343a-9ca5c4-df694e-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