Color

#043b77

#043b77
hex#043b77
rgbrgb(4, 59, 119)
hslhsl(211, 93%, 24%)
oklchoklch(0.358 0.116 255.5)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0449

Tints & shades

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

Harmonies

Complementary

Open in tool →

#763f04

#047476 · #060476

#76043b · #3b7604

Split-complementary

Open in tool →

#760604 · #747604

#760474 · #763f04 · #047606

Contrast

#043b77 as textRatioAAAA largeAAAFix
Aaon white
11.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #0872e2 as the text (4.52:1)
  • AAA: use #3f98f8 as the text (7.06:1)
  • AA: or shift the background to #a6a6a6 (4.55:1)
  • AAA: or shift the background to #cfcfcf (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #043b77 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#043b77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043b77
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 #043b77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043b77-9cabc4-df534e-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