Color

#285153

#285153
hex#285153
rgbrgb(40, 81, 83)
hslhsl(183, 35%, 24%)
oklchoklch(0.406 0.046 199.7)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0696

Colors that go with #285153

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 →

#532a28

#28533f · #283b53

#532850 · #505328

Split-complementary

Open in tool →

#53283b · #533f28

#3f2853 · #532a28 · #3b5328

Contrast

#285153 as textRatioAAAA largeAAAFix
Aaon white
8.78:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #3f7f83 as the text (4.57:1)
  • AAA: use #51a4a9 as the text (7.23:1)
  • AA: or shift the background to #bababa (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #285153 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#285153 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #285153
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 #285153 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/285153-a2b9be-d4598e-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