Color

#0b2d2d

#0b2d2d
hex#0b2d2d
rgbrgb(11, 45, 45)
hslhsl(180, 61%, 11%)
oklchoklch(0.273 0.038 195.1)
Closest name: Black Box (#0f282f)Relative luminance 0.0214

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d0b0b

#0b2d1c · #0b1c2d

#2d0b2d · #2d2d0b

Split-complementary

Open in tool →

#2d0b1c · #2d1c0b

#1c0b2d · #2d0b0b · #1c2d0b

Contrast

#0b2d2d as textRatioAAAA largeAAAFix
Aaon white
14.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #208383 as the text (4.64:1)
  • AAA: use #29a8a8 as the text (7.26:1)
  • AA: or shift the background to #8f8f8f (4.55:1)
  • AAA: or shift the background to #b3b3b3 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b2d2d 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

#0b2d2d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b2d2d
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 #0b2d2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b2d2d-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