Color

#285152

#285152
hex#285152
rgbrgb(40, 81, 82)
hslhsl(181, 34%, 24%)
oklchoklch(0.406 0.046 197.6)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0695

Tints & shades

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

Harmonies

Complementary

Open in tool →

#522928

#28523e · #283d52

#522851 · #515228

Split-complementary

Open in tool →

#52283d · #523e28

#3e2852 · #522928 · #3d5228

Contrast

#285152 as textRatioAAAA largeAAAFix
Aaon white
8.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #408182 as the text (4.68:1)
  • AAA: use #51a3a4 as the text (7.12:1)
  • AA: or shift the background to #bababa (4.53:1)
  • AAA: or shift the background to #e6e6e6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #285152 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

#285152 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #285152
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #285152 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/285152-a2babe-d45992-1f272d-e9f1ed?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