Color

#043e37

#043e37
hex#043e37
rgbrgb(4, 62, 55)
hslhsl(173, 88%, 13%)
oklchoklch(0.328 0.056 182.2)
Closest name: Botanical Night (#12403c)Relative luminance 0.0375

Colors that go with #043e37

Sea Green, Sienna and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e040b

#043e1a · #04283e

#38043e · #3e3804

Split-complementary

Open in tool →

#3e0428 · #3e1a04

#1a043e · #3e040b · #283e04

Contrast

#043e37 as textRatioAAAA largeAAAFix
Aaon white
12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #098678 as the text (4.69:1)
  • AAA: use #0ba895 as the text (7.05:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #043e37 as the background.

Brands using this color

Fonts for this mood

#043e37 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043e37
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #043e37 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043e37-a2bebe-d459a3-1f292d-e9f1ec?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