Color

#030381

#030381
hex#030381
rgbrgb(3, 3, 129)
hslhsl(240, 95%, 26%)
oklchoklch(0.276 0.186 265)
Closest name: navy (#000080)Relative luminance 0.0167

Tints & shades

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

Harmonies

Complementary

Open in tool →

#818103

#034281 · #420381

#810303 · #038103

Split-complementary

Open in tool →

#814203 · #428103

#810342 · #818103 · #038142

Contrast

#030381 as textRatioAAAA largeAAAFix
Aaon white
15.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #6060fb as the text (4.56:1)
  • AAA: use #8d8dfc as the text (7.35:1)
  • AA: or shift the background to #8a8a8a (4.56:1)
  • AAA: or shift the background to #adadad (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030381 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

#030381 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030381
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 #030381 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030381-a19cc4-df994e-251f2d-e9edf1?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