Color

#2b3136

#2b3136
hex#2b3136
rgbrgb(43, 49, 54)
hslhsl(207, 11%, 19%)
oklchoklch(0.309 0.012 243.2)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0298

Tints & shades

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

Harmonies

Complementary

Open in tool →

#36302b

#2b3635 · #2b2c36

#362b31 · #31362b

Split-complementary

Open in tool →

#362b2c · #36352b

#352b36 · #36302b · #2c362b

Contrast

#2b3136 as textRatioAAAA largeAAAFix
Aaon white
13.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #687782 as the text (4.55:1)
  • AAA: use #8b98a2 as the text (7.11:1)
  • AA: or shift the background to #999999 (4.62:1)
  • AAA: or shift the background to #bdbdbd (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b3136 as the background.

Brands using this color

Fonts for this mood

#2b3136 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b3136
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 #2b3136 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b3136-9cadc4-df4e53-1f212d-e9f1f1?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