Color

#284253

#284253
hex#284253
rgbrgb(40, 66, 83)
hslhsl(204, 35%, 24%)
oklchoklch(0.366 0.043 238.3)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0497

Colors that go with #284253

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 →

#533928

#28534e · #282c53

#532841 · #415328

Split-complementary

Open in tool →

#53282c · #534e28

#4e2853 · #533928 · #2c5328

Contrast

#284253 as textRatioAAAA largeAAAFix
Aaon white
10.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #4b7b9b as the text (4.61:1)
  • AAA: use #6e9bb9 as the text (7.05:1)
  • AA: or shift the background to #ababab (4.59:1)
  • AAA: or shift the background to #d4d4d4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #284253 as the background.

Brands using this color

Fonts for this mood

#284253 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #284253
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 #284253 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284253-9cafc4-df4e5a-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