Color

#04454d

#04454d
hex#04454d
rgbrgb(4, 69, 77)
hslhsl(187, 90%, 16%)
oklchoklch(0.358 0.06 208.3)
Closest name: Cold and Dark (#154250)Relative luminance 0.0482

Colors that go with #04454d

Crimson, Steel 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 →

#4e0d04

#044e31 · #04204e

#4e0445 · #454e04

Split-complementary

Open in tool →

#4e0420 · #4e3104

#31044e · #4e0d04 · #204e04

Contrast

#04454d as textRatioAAAA largeAAAFix
Aaon white
10.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #088191 as the text (4.56:1)
  • AAA: use #0aa4b8 as the text (7.02:1)
  • AA: or shift the background to #ababab (4.66:1)
  • AAA: or shift the background to #d1d1d1 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04454d as the background.

Brands using this color

Fonts for this mood

#04454d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04454d
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 #04454d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04454d-a2b8be-df4e83-1f262d-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