Color

#030f96

#030f96
hex#030f96
rgbrgb(3, 15, 150)
hslhsl(235, 96%, 30%)
oklchoklch(0.316 0.203 264.8)
Closest name: Everlasting Night (#000099)Relative luminance 0.0256

Colors that go with #030f96

Steel Blue, Crimson and Royal 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 →

#968a03

#035996 · #400396

#96030f · #0f9603

Split-complementary

Open in tool →

#964003 · #599603

#960359 · #968a03 · #039640

Contrast

#030f96 as textRatioAAAA largeAAAFix
Aaon white
13.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #5563fc as the text (4.58:1)
  • AAA: use #828cfc as the text (7.11:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #bababa (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030f96 as the background.

Brands using this color

Fonts for this mood

#030f96 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030f96
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 #030f96 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030f96-9e9cc4-df8d4e-241f2d-e9eef1?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