Color

#290353

#290353
hex#290353
rgbrgb(41, 3, 83)
hslhsl(268, 93%, 17%)
oklchoklch(0.243 0.127 296.8)
Closest name: Hollow Knight (#330055)Relative luminance 0.0116

Colors that go with #290353

Charcoal, Royal Blue and Teal 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 →

#2e5403

#030654 · #510354

#542903 · #035429

Split-complementary

Open in tool →

#545103 · #065403

#540306 · #2e5403 · #035451

Contrast

#290353 as textRatioAAAA largeAAAFix
Aaon white
17.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #9844f8 as the text (4.52:1)
  • AAA: use #b67afa as the text (7.15:1)
  • AA: or shift the background to #858585 (4.62:1)
  • AAA: or shift the background to #a6a6a6 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #290353 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

#290353 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #290353
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 #290353 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/290353-b39cc4-dfdc4e-2c1f2d-e9eaf1?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