Color

#033963

#033963
hex#033963
rgbrgb(3, 57, 99)
hslhsl(206, 94%, 20%)
oklchoklch(0.337 0.09 248.8)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0385

Tints & shades

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

Harmonies

Complementary

Open in tool →

#632d03

#03635d · #030963

#630339 · #396303

Split-complementary

Open in tool →

#630309 · #635d03

#5d0363 · #632d03 · #096303

Contrast

#033963 as textRatioAAAA largeAAAFix
Aaon white
11.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #0679d0 as the text (4.65:1)
  • AAA: use #209bf8 as the text (7.11:1)
  • AA: or shift the background to #a1a1a1 (4.59:1)
  • AAA: or shift the background to #c7c7c7 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #033963 as the background.

Brands using this color

Fonts for this mood

#033963 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #033963
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 #033963 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/033963-9caec4-df4e56-1f212d-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