Color

#043d4e

#043d4e
hex#043d4e
rgbrgb(4, 61, 78)
hslhsl(194, 90%, 16%)
oklchoklch(0.335 0.061 224.4)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0391

Colors that go with #043d4e

Crimson, Royal Blue 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 →

#4e1504

#044e3a · #04184e

#4e043c · #3c4e04

Split-complementary

Open in tool →

#4e0418 · #4e3a04

#3a044e · #4e1504 · #184e04

Contrast

#043d4e as textRatioAAAA largeAAAFix
Aaon white
11.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #0980a5 as the text (4.64:1)
  • AAA: use #0ba2d0 as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.56:1)
  • AAA: or shift the background to #c9c9c9 (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 #043d4e as the background.

Brands using this color

Fonts for this mood

#043d4e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043d4e
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 #043d4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043d4e-9cb6c4-df4e72-1f242d-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