Color

#373338

#373338
hex#373338
rgbrgb(55, 51, 56)
hslhsl(288, 5%, 21%)
oklchoklch(0.327 0.01 319.5)
Closest name: Dark Charcoal (#333232)Relative luminance 0.0347

Colors that go with #373338

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 →

#343833

#343338 · #383337

#383733 · #333837

Split-complementary

Open in tool →

#373833 · #333834

#383433 · #343833 · #333738

Contrast

#373338 as textRatioAAAA largeAAAFix
Aaon white
12.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.69:1failfailfail
  • AA: use #7b727e as the text (4.55:1)
  • AAA: use #9c949e as the text (7.14:1)
  • AA: or shift the background to #9c9c9c (4.52:1)
  • AAA: or shift the background to #c4c4c4 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #373338 as the background.

Brands using this color

Fonts for this mood

#373338 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #373338
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 #373338 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/373338-a2beb0-c859d4-1f2d2b-eaf1e9?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