Color

#043f52

#043f52
hex#043f52
rgbrgb(4, 63, 82)
hslhsl(195, 91%, 17%)
oklchoklch(0.343 0.064 226.4)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0419

Tints & shades

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

Harmonies

Complementary

Open in tool →

#531804

#04533f · #041853

#53043f · #3f5304

Split-complementary

Open in tool →

#530418 · #533f04

#3f0453 · #531804 · #185304

Contrast

#043f52 as textRatioAAAA largeAAAFix
Aaon white
11.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #087ea6 as the text (4.55:1)
  • AAA: use #0aa3d6 as the text (7.22:1)
  • AA: or shift the background to #a3a3a3 (4.53:1)
  • AAA: or shift the background to #cccccc (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 #043f52 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

#043f52 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043f52
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 #043f52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043f52-9cb5c4-df4e70-1f242d-e9f1ef?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