Color

#290481

#290481
hex#290481
rgbrgb(41, 4, 129)
hslhsl(258, 94%, 26%)
oklchoklch(0.3 0.176 281.1)
Closest name: Child of the Night (#220077)Relative luminance 0.0214

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b8104

#041d81 · #680481

#812904 · #048129

Split-complementary

Open in tool →

#816804 · #1d8104

#81041d · #5b8104 · #048168

Contrast

#290481 as textRatioAAAA largeAAAFix
Aaon white
14.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #8452fa as the text (4.57:1)
  • AAA: use #a783fb as the text (7.28:1)
  • AA: or shift the background to #8f8f8f (4.55:1)
  • AAA: or shift the background to #b3b3b3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #290481 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

#290481 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #290481
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 #290481 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/290481-ad9cc4-dfc44e-291f2d-e9ebf1?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