Color

#291d58

#291d58
hex#291d58
rgbrgb(41, 29, 88)
hslhsl(252, 50%, 23%)
oklchoklch(0.284 0.101 287.4)
Closest name: Fabric of Space (#341758)Relative luminance 0.0205

Colors that go with #291d58

Charcoal, Sea Green and Steel Blue 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 →

#4c581d

#1d2f58 · #461d58

#58291d · #1d5829

Split-complementary

Open in tool →

#58461d · #2f581d

#581d2f · #4c581d · #1d5846

Contrast

#291d58 as textRatioAAAA largeAAAFix
Aaon white
14.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #7a66cc as the text (4.6:1)
  • AAA: use #9c8cd9 as the text (7.17:1)
  • AA: or shift the background to #8f8f8f (4.6:1)
  • AAA: or shift the background to #b3b3b3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #291d58 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

#291d58 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #291d58
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 #291d58 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/291d58-a99cc4-dfb64e-281f2d-e9ecf1?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