Color

#2b4040

#2b4040
hex#2b4040
rgbrgb(43, 64, 64)
hslhsl(180, 20%, 21%)
oklchoklch(0.354 0.026 196)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0455

Tints & shades

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

Harmonies

Complementary

Open in tool →

#402b2b

#2b4036 · #2b3640

#402b40 · #40402b

Split-complementary

Open in tool →

#402b36 · #40362b

#362b40 · #402b2b · #36402b

Contrast

#2b4040 as textRatioAAAA largeAAAFix
Aaon white
10.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #547d7d as the text (4.61:1)
  • AAA: use #6f9f9f as the text (7.14:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b4040 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#2b4040 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b4040
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 #2b4040 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b4040-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