Color

#043667

#043667
hex#043667
rgbrgb(4, 54, 103)
hslhsl(210, 93%, 21%)
oklchoklch(0.333 0.099 253.3)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0364

Tints & shades

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

Harmonies

Complementary

Open in tool →

#673604

#046767 · #040467

#670436 · #366704

Split-complementary

Open in tool →

#670404 · #676704

#670467 · #673604 · #046704

Contrast

#043667 as textRatioAAAA largeAAAFix
Aaon white
12.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #0873dd as the text (4.51:1)
  • AAA: use #3a99f8 as the text (7.09:1)
  • AA: or shift the background to #9e9e9e (4.53:1)
  • AAA: or shift the background to #c7c7c7 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #043667 as the background.

Brands using this color

Fonts for this mood

#043667 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043667
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 #043667 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043667-9cabc4-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