Color

#054151

#054151
hex#054151
rgbrgb(5, 65, 81)
hslhsl(193, 88%, 17%)
oklchoklch(0.349 0.062 221.8)
Closest name: Cold and Dark (#154250)Relative luminance 0.0441

Colors that go with #054151

Crimson, Denim 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 →

#511605

#05513c · #051b51

#510541 · #415105

Split-complementary

Open in tool →

#51051b · #513c05

#3c0551 · #511605 · #1b5105

Contrast

#054151 as textRatioAAAA largeAAAFix
Aaon white
11.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #0a82a3 as the text (4.73:1)
  • AAA: use #0da4ce as the text (7.22:1)
  • AA: or shift the background to #a6a6a6 (4.59:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #054151 as the background.

Brands using this color

Fonts for this mood

#054151 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #054151
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 #054151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/054151-a2b5be-df4e75-1f242d-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