Color

#043f49

#043f49
hex#043f49
rgbrgb(4, 63, 73)
hslhsl(189, 90%, 15%)
oklchoklch(0.338 0.057 212.8)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0406

Tints & shades

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

Harmonies

Complementary

Open in tool →

#490e04

#044931 · #041c49

#49043e · #3e4904

Split-complementary

Open in tool →

#49041c · #493104

#310449 · #490e04 · #1c4904

Contrast

#043f49 as textRatioAAAA largeAAAFix
Aaon white
11.59:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #088196 as the text (4.59:1)
  • AAA: use #0aa6c2 as the text (7.25:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #043f49 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

#043f49 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043f49
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 #043f49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043f49-a2b7be-df4e7e-1f252d-e9f1ee?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