Color

#211c2c

#211c2c
hex#211c2c
rgbrgb(33, 28, 44)
hslhsl(259, 22%, 14%)
oklchoklch(0.24 0.031 298.4)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0134

Colors that go with #211c2c

Charcoal, Dark Olive Green and Sea Green 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 →

#272c1c

#1c1f2c · #291c2c

#2c211c · #1c2c21

Split-complementary

Open in tool →

#2c291c · #1f2c1c

#2c1c1f · #272c1c · #1c2c29

Contrast

#211c2c as textRatioAAAA largeAAAFix
Aaon white
16.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #7d6da2 as the text (4.58:1)
  • AAA: use #9c8fb7 as the text (7.03:1)
  • AA: or shift the background to #878787 (4.61:1)
  • AAA: or shift the background to #ababab (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #211c2c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#211c2c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #211c2c
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 #211c2c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/211c2c-ad9cc4-dfc74e-2a1f2d-e9ebf1?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