Color

#1b2222

#1b2222
hex#1b2222
rgbrgb(27, 34, 34)
hslhsl(180, 11%, 12%)
oklchoklch(0.245 0.01 196.5)
Closest name: Underworld (#1e231c)Relative luminance 0.0149

Tints & shades

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

Harmonies

Complementary

Open in tool →

#221b1b

#1b221f · #1b1f22

#221b22 · #22221b

Split-complementary

Open in tool →

#221b1f · #221f1b

#1f1b22 · #221b1b · #1f221b

Contrast

#1b2222 as textRatioAAAA largeAAAFix
Aaon white
16.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #627a7a as the text (4.58:1)
  • AAA: use #829b9b as the text (7.11:1)
  • AA: or shift the background to #878787 (4.5:1)
  • AAA: or shift the background to #ababab (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b2222 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1b2222 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b2222
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 #1b2222 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b2222-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