Color

#516154

#516154
hex#516154
rgbrgb(81, 97, 84)
hslhsl(131, 9%, 35%)
oklchoklch(0.475 0.029 150.6)
Closest name: Black Forest (#5e6354)Relative luminance 0.1094

Tints & shades

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

Harmonies

Complementary

Open in tool →

#61515e

#566151 · #51615c

#545161 · #615451

Split-complementary

Open in tool →

#5c5161 · #615156

#515661 · #61515e · #615c51

Contrast

#516154 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #4d5c4f as the text (7.1:1)
Aaon black
3.19:1failpassfail
  • AA: use #667a6a as the text (4.56:1)
  • AAA: use #879b8b as the text (7.09:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516154 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

#516154 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #516154
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 #516154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516154-a2beaa-b34edf-1f2d28-ecf1e9?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