Color

#284453

#284453
hex#284453
rgbrgb(40, 68, 83)
hslhsl(201, 35%, 24%)
oklchoklch(0.371 0.043 233)
Closest name: Charcoal (#36454f)Relative luminance 0.0521

Colors that go with #284453

Dark Olive Green, Royal 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 →

#533728

#28534c · #282e53

#532844 · #445328

Split-complementary

Open in tool →

#53282e · #534c28

#4c2853 · #533728 · #2e5328

Contrast

#284453 as textRatioAAAA largeAAAFix
Aaon white
10.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #497c97 as the text (4.61:1)
  • AAA: use #6b9db8 as the text (7.14:1)
  • AA: or shift the background to #adadad (4.58:1)
  • AAA: or shift the background to #d6d6d6 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #284453 as the background.

Brands using this color

Fonts for this mood

#284453 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #284453
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 #284453 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284453-9cb1c4-df4e62-1f222d-e9f1f0?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