Color

#03386d

#03386d
hex#03386d
rgbrgb(3, 56, 109)
hslhsl(210, 95%, 22%)
oklchoklch(0.342 0.105 253.9)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0395

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d3803

#036d6d · #03036d

#6d0338 · #386d03

Split-complementary

Open in tool →

#6d0303 · #6d6d03

#6d036d · #6d3803 · #036d03

Contrast

#03386d as textRatioAAAA largeAAAFix
Aaon white
11.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #0673e0 as the text (4.54:1)
  • AAA: use #3899fa as the text (7.11:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (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 #03386d as the background.

Brands using this color

Fonts for this mood

#03386d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03386d
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 #03386d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03386d-9cabc4-df514e-1f202d-e9f1f1?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