Color

#03486d

#03486d
hex#03486d
rgbrgb(3, 72, 109)
hslhsl(201, 95%, 22%)
oklchoklch(0.384 0.087 240.7)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0576

Colors that go with #03486d

Royal Blue, Teal and 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 →

#6d2803

#036d5d · #03136d

#6d0348 · #486d03

Split-complementary

Open in tool →

#6d0313 · #6d5d03

#5d036d · #6d2803 · #136d03

Contrast

#03486d as textRatioAAAA largeAAAFix
Aaon white
9.76:1passpasspassPasses AAA — no fix needed.
Aaon black
2.15:1failfailfail
  • AA: use #057dbd as the text (4.67:1)
  • AAA: use #069def as the text (7.08:1)
  • AA: or shift the background to #b0b0b0 (4.5:1)
  • AAA: or shift the background to #dbdbdb (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03486d as the background.

Brands using this color

Fonts for this mood

#03486d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03486d
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 #03486d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03486d-9cb1c4-df4e62-1f222d-e9f1f0?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