Color

#211218

#211218
hex#211218
rgbrgb(33, 18, 24)
hslhsl(336, 29%, 10%)
oklchoklch(0.205 0.027 354.1)
Closest name: Bats Cloak (#1f1518)Relative luminance 0.0082

Tints & shades

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

Harmonies

Complementary

Open in tool →

#12211b

#21121f · #211412

#182112 · #121821

Split-complementary

Open in tool →

#122114 · #121f21

#1f2112 · #12211b · #141221

Contrast

#211218 as textRatioAAAA largeAAAFix
Aaon white
18.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #a65e7b as the text (4.51:1)
  • AAA: use #be899e as the text (7.26:1)
  • AA: or shift the background to #808080 (4.57:1)
  • AAA: or shift the background to #a3a3a3 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #211218 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

#211218 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #211218
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #211218 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/211218-c49ca7-62cb6e-2d201f-f1e9f0?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