Color

#030387

#030387
hex#030387
rgbrgb(3, 3, 135)
hslhsl(240, 96%, 27%)
oklchoklch(0.285 0.193 264.9)
Closest name: darkblue (#00008b)Relative luminance 0.0183

Tints & shades

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

Harmonies

Complementary

Open in tool →

#878703

#034587 · #450387

#870303 · #038703

Split-complementary

Open in tool →

#874503 · #458703

#870345 · #878703 · #038745

Contrast

#030387 as textRatioAAAA largeAAAFix
Aaon white
15.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #5f5ffc as the text (4.53:1)
  • AAA: use #8c8cfd as the text (7.28:1)
  • AA: or shift the background to #8c8c8c (4.57:1)
  • AAA: or shift the background to #b0b0b0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030387 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

#030387 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030387
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 #030387 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030387-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