Color

#291b2d

#291b2d
hex#291b2d
rgbrgb(41, 27, 45)
hslhsl(287, 25%, 14%)
oklchoklch(0.248 0.039 318.6)
Closest name: Black Velvet (#222233)Relative luminance 0.0144

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f2d1b

#201b2d · #2d1b28

#2d291b · #1b2d29

Split-complementary

Open in tool →

#282d1b · #1b2d20

#2d201b · #1f2d1b · #1b282d

Contrast

#291b2d as textRatioAAAA largeAAAFix
Aaon white
16.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #9463a1 as the text (4.56:1)
  • AAA: use #ae89b8 as the text (7.07:1)
  • AA: or shift the background to #878787 (4.54:1)
  • AAA: or shift the background to #ababab (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #291b2d 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

#291b2d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #291b2d
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 #291b2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/291b2d-bd9fc1-abcb62-2d1f2a-ece9f1?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