Color

#302121

#302121
hex#302121
rgbrgb(48, 33, 33)
hslhsl(0, 19%, 16%)
oklchoklch(0.266 0.023 18.7)
Closest name: Aubergine (#372528)Relative luminance 0.0183

Colors that go with #302121

Charcoal, Amber and 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.

Real palettes that use #302121

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#213131

#312129 · #312921

#213121 · #212131

Split-complementary

Open in tool →

#213129 · #212931

#293121 · #213131 · #292131

Contrast

#302121 as textRatioAAAA largeAAAFix
Aaon white
15.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #9a6a6a as the text (4.64:1)
  • AAA: use #b38f8f as the text (7.24:1)
  • AA: or shift the background to #8c8c8c (4.57:1)
  • AAA: or shift the background to #b0b0b0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #302121 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#302121 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #302121
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 #302121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/302121-c4a19c-62cb98-2d251f-f1e9ed?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