Color

#033b72

#033b72
hex#033b72
rgbrgb(3, 59, 114)
hslhsl(210, 95%, 23%)
oklchoklch(0.354 0.109 253.7)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0436

Tints & shades

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

Harmonies

Complementary

Open in tool →

#723b03

#037272 · #030372

#72033b · #3b7203

Split-complementary

Open in tool →

#720303 · #727203

#720372 · #723b03 · #037203

Contrast

#033b72 as textRatioAAAA largeAAAFix
Aaon white
11.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #0673e0 as the text (4.54:1)
  • AAA: use #3899fa as the text (7.11:1)
  • AA: or shift the background to #a6a6a6 (4.61:1)
  • AAA: or shift the background to #cfcfcf (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #033b72 as the background.

Brands using this color

Fonts for this mood

#033b72 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #033b72
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 #033b72 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/033b72-9cabc4-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