Color

#290a28

#290a28
hex#290a28
rgbrgb(41, 10, 40)
hslhsl(302, 61%, 10%)
oklchoklch(0.212 0.069 329)
Closest name: Dark Prom Queen (#2b0f2e)Relative luminance 0.0084

Colors that go with #290a28

Blue Violet, Charcoal 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 →

#0a290b

#1b0a29 · #290a18

#28290a · #0a2829

Split-complementary

Open in tool →

#18290a · #0a291b

#291b0a · #0a290b · #0a1829

Contrast

#290a28 as textRatioAAAA largeAAAFix
Aaon white
17.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #c530c0 as the text (4.56:1)
  • AAA: use #db6bd7 as the text (7.1:1)
  • AA: or shift the background to #808080 (4.55:1)
  • AAA: or shift the background to #a3a3a3 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #290a28 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

#290a28 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #290a28
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 #290a28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/290a28-c19fbc-91cb62-2d1f27-eee9f1?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