Color

#030368

#030368
hex#030368
rgbrgb(3, 3, 104)
hslhsl(240, 94%, 21%)
oklchoklch(0.239 0.158 265.5)
Closest name: Alone in the Dark (#000066)Relative luminance 0.0108

Colors that go with #030368

Charcoal, Crimson and Steel Blue 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 →

#686803

#033668 · #360368

#680303 · #036803

Split-complementary

Open in tool →

#683603 · #366803

#680336 · #686803 · #036836

Contrast

#030368 as textRatioAAAA largeAAAFix
Aaon white
17.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #6161fa as the text (4.6:1)
  • AAA: use #8d8dfb as the text (7.34:1)
  • AA: or shift the background to #858585 (4.68:1)
  • AAA: or shift the background to #a6a6a6 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030368 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#030368 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030368
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 #030368 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030368-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