Color

#516157

#516157
hex#516157
rgbrgb(81, 97, 87)
hslhsl(143, 9%, 35%)
oklchoklch(0.476 0.025 157.9)
Closest name: Black Forest (#5e6354)Relative luminance 0.1099

Tints & shades

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

Harmonies

Complementary

Open in tool →

#61515b

#536151 · #51615f

#575161 · #615751

Split-complementary

Open in tool →

#5f5161 · #615153

#515361 · #61515b · #615f51

Contrast

#516157 as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #4d5c52 as the text (7.07:1)
Aaon black
3.2:1failpassfail
  • AA: use #667a6e as the text (4.57:1)
  • AAA: use #879b8f as the text (7.12:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516157 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

#516157 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #516157
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 #516157 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516157-a2beb0-c859d4-1f2d2b-eaf1e9?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