Color

#0b2b2d

#0b2b2d
hex#0b2b2d
rgbrgb(11, 43, 45)
hslhsl(184, 61%, 11%)
oklchoklch(0.267 0.037 201)
Closest name: Black Box (#0f282f)Relative luminance 0.0199

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d0d0b

#0b2d1e · #0b1a2d

#2d0b2b · #2b2d0b

Split-complementary

Open in tool →

#2d0b1a · #2d1e0b

#1e0b2d · #2d0d0b · #1a2d0b

Contrast

#0b2b2d as textRatioAAAA largeAAAFix
Aaon white
15.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #218187 as the text (4.55:1)
  • AAA: use #2aa4ac as the text (7:1)
  • AA: or shift the background to #8f8f8f (4.65:1)
  • AAA: or shift the background to #b3b3b3 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b2b2d 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

#0b2b2d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b2b2d
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 #0b2b2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b2b2d-a2b9be-df4e8a-1f262d-e9f1ee?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