Color

#1c2121

#1c2121
hex#1c2121
rgbrgb(28, 33, 33)
hslhsl(180, 8%, 12%)
oklchoklch(0.243 0.007 196.7)
Closest name: Underworld (#1e231c)Relative luminance 0.0144

Tints & shades

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

Harmonies

Complementary

Open in tool →

#211c1c

#1c211f · #1c1f21

#211c21 · #21211c

Split-complementary

Open in tool →

#211c1f · #211f1c

#1f1c21 · #211c1c · #1f211c

Contrast

#1c2121 as textRatioAAAA largeAAAFix
Aaon white
16.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #677979 as the text (4.59:1)
  • AAA: use #899a9a as the text (7.15:1)
  • AA: or shift the background to #878787 (4.54:1)
  • AAA: or shift the background to #ababab (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c2121 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1c2121 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c2121
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 #1c2121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c2121-a2bbbe-d45994-1f272d-e9f1ed?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