Color

#283d3e

#283d3e
hex#283d3e
rgbrgb(40, 61, 62)
hslhsl(183, 22%, 20%)
oklchoklch(0.343 0.027 199.7)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0414

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e2928

#283e34 · #28323e

#3e283d · #3d3e28

Split-complementary

Open in tool →

#3e2832 · #3e3428

#34283e · #3e2928 · #323e28

Contrast

#283d3e as textRatioAAAA largeAAAFix
Aaon white
11.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #527d80 as the text (4.6:1)
  • AAA: use #6d9fa2 as the text (7.13:1)
  • AA: or shift the background to #a3a3a3 (4.56:1)
  • AAA: or shift the background to #cccccc (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283d3e 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

#283d3e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283d3e
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 #283d3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283d3e-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