Color

#284c4d

#284c4d
hex#284c4d
rgbrgb(40, 76, 77)
hslhsl(182, 32%, 23%)
oklchoklch(0.39 0.042 197.9)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0616

Colors that go with #284c4d

Teal, Rust 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d2928

#284d3c · #28394d

#4d284c · #4c4d28

Split-complementary

Open in tool →

#4d2839 · #4d3c28

#3c284d · #4d2928 · #394d28

Contrast

#284c4d as textRatioAAAA largeAAAFix
Aaon white
9.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #427e80 as the text (4.53:1)
  • AAA: use #55a2a5 as the text (7.1:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #e0e0e0 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #284c4d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#284c4d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #284c4d
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 #284c4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284c4d-a2babe-d45990-1f272d-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