Color

#291f47

#291f47
hex#291f47
rgbrgb(41, 31, 71)
hslhsl(255, 39%, 20%)
oklchoklch(0.274 0.072 292.5)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0191

Colors that go with #291f47

Charcoal, Dark Olive Green and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d471f

#1f2947 · #3d1f47

#47291f · #1f4729

Split-complementary

Open in tool →

#473d1f · #29471f

#471f29 · #3d471f · #1f473d

Contrast

#291f47 as textRatioAAAA largeAAAFix
Aaon white
15.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #7c67bc as the text (4.52:1)
  • AAA: use #9d8ecd as the text (7.18:1)
  • AA: or shift the background to #8c8c8c (4.52:1)
  • AAA: or shift the background to #b0b0b0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #291f47 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#291f47 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #291f47
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #291f47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/291f47-ab9cc4-dfbd4e-291f2d-e9ebf1?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