Color

#290e49

#290e49
hex#290e49
rgbrgb(41, 14, 73)
hslhsl(267, 68%, 17%)
oklchoklch(0.245 0.103 299.6)
Closest name: Hollow Knight (#330055)Relative luminance 0.0127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e490e

#0e1149 · #460e49

#49280e · #0e4928

Split-complementary

Open in tool →

#49460e · #11490e

#490e11 · #2e490e · #0e4946

Contrast

#290e49 as textRatioAAAA largeAAAFix
Aaon white
16.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #9254de as the text (4.55:1)
  • AAA: use #b083e7 as the text (7.25:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #290e49 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

#290e49 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #290e49
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #290e49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/290e49-b39cc4-dfda4e-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