Color

#054451

#054451
hex#054451
rgbrgb(5, 68, 81)
hslhsl(190, 88%, 17%)
oklchoklch(0.357 0.061 216.5)
Closest name: Cold and Dark (#154250)Relative luminance 0.0476

Colors that go with #054451

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 →

#511205

#055138 · #051f51

#510545 · #455105

Split-complementary

Open in tool →

#51051f · #513805

#380551 · #511205 · #1f5105

Contrast

#054451 as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #0a8199 as the text (4.61:1)
  • AAA: use #0da6c5 as the text (7.28:1)
  • AA: or shift the background to #a8a8a8 (4.52:1)
  • AAA: or shift the background to #d1d1d1 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #054451 as the background.

Brands using this color

Fonts for this mood

#054451 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #054451
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 #054451 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/054451-a2b6be-df4e7c-1f252d-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