Color

#291d72

#291d72
hex#291d72
rgbrgb(41, 29, 114)
hslhsl(248, 59%, 28%)
oklchoklch(0.309 0.138 281)
Closest name: Deep Space Rodeo (#332277)Relative luminance 0.0257

Colors that go with #291d72

Charcoal, Steel Blue and 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 →

#66721d

#1d3c72 · #531d72

#72291d · #1d7229

Split-complementary

Open in tool →

#72531d · #3c721d

#721d3c · #66721d · #1d7253

Contrast

#291d72 as textRatioAAAA largeAAAFix
Aaon white
13.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #7465d7 as the text (4.59:1)
  • AAA: use #998de2 as the text (7.26:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #bababa (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #291d72 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

#291d72 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #291d72
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 #291d72 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/291d72-a69cc4-dfac4e-271f2d-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