Color

#291e33

#291e33
hex#291e33
rgbrgb(41, 30, 51)
hslhsl(271, 26%, 16%)
oklchoklch(0.258 0.041 307.7)
Closest name: Black Velvet (#222233)Relative luminance 0.0164

Tints & shades

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

Harmonies

Complementary

Open in tool →

#28331e

#1f1e33 · #331e33

#33291e · #1e3329

Split-complementary

Open in tool →

#33331e · #1e331f

#331f1e · #28331e · #1e3333

Contrast

#291e33 as textRatioAAAA largeAAAFix
Aaon white
15.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #8868a6 as the text (4.58:1)
  • AAA: use #a78fbd as the text (7.31:1)
  • AA: or shift the background to #8a8a8a (4.58:1)
  • AAA: or shift the background to #adadad (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #291e33 as the background.

Brands using this color

Fonts for this mood

#291e33 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #291e33
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 #291e33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/291e33-b59cc4-c7cb62-2c1f2d-eae9f1?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