Color

#284d43

#284d43
hex#284d43
rgbrgb(40, 77, 67)
hslhsl(164, 32%, 23%)
oklchoklch(0.389 0.046 174.3)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0616

Colors that go with #284d43

Sea Green, Teal 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 →

#4d2832

#284d31 · #28454d

#43284d · #4d4328

Split-complementary

Open in tool →

#4d2845 · #4d3128

#31284d · #4d2832 · #454d28

Contrast

#284d43 as textRatioAAAA largeAAAFix
Aaon white
9.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #42806f as the text (4.55:1)
  • AAA: use #55a590 as the text (7.17:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #e0e0e0 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #284d43 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#284d43 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #284d43
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 #284d43 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284d43-a2beba-d459b5-1f2b2d-e9f1eb?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