Color

#2a3337

#2a3337
hex#2a3337
rgbrgb(42, 51, 55)
hslhsl(198, 13%, 19%)
oklchoklch(0.314 0.014 226.5)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0314

Colors that go with #2a3337

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 →

#372e2a

#2a3734 · #2a2d37

#372a33 · #33372a

Split-complementary

Open in tool →

#372a2d · #37342a

#342a37 · #372e2a · #2d372a

Contrast

#2a3337 as textRatioAAAA largeAAAFix
Aaon white
12.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #647982 as the text (4.6:1)
  • AAA: use #8699a2 as the text (7.09:1)
  • AA: or shift the background to #999999 (4.53:1)
  • AAA: or shift the background to #bfbfbf (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a3337 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2a3337 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3337
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 #2a3337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3337-9cb3c4-df4e69-1f232d-e9f1f0?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