Color

#004f56

#004f56
hex#004f56
rgbrgb(0, 79, 86)
hslhsl(185, 100%, 17%)
oklchoklch(0.39 0.067 205.1)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0626

Colors that go with #004f56

Crimson, Steel Blue and Blue 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.

Real palettes that use #004f56

Tints & shades

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

Harmonies

Complementary

Open in tool →

#570700

#005733 · #002457

#57004f · #4f5700

Split-complementary

Open in tool →

#570024 · #573300

#330057 · #570700 · #245700

Contrast

#004f56 as textRatioAAAA largeAAAFix
Aaon white
9.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #00838f as the text (4.64:1)
  • AAA: use #00a8b8 as the text (7.29:1)
  • AA: or shift the background to #b5b5b5 (4.55:1)
  • AAA: or shift the background to #e0e0e0 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #004f56 as the background.

Brands using this color

Fonts for this mood

#004f56 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #004f56
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 #004f56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/004f56-a2b8be-df4e88-1f262d-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