Color

#516153

#516153
hex#516153
rgbrgb(81, 97, 83)
hslhsl(128, 9%, 35%)
oklchoklch(0.475 0.03 148.6)
Closest name: Black Forest (#5e6354)Relative luminance 0.1092

Tints & shades

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

Harmonies

Complementary

Open in tool →

#61515f

#576151 · #51615b

#535161 · #615351

Split-complementary

Open in tool →

#5b5161 · #615157

#515761 · #61515f · #615b51

Contrast

#516153 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #4d5c4f as the text (7.1:1)
Aaon black
3.18:1failpassfail
  • AA: use #667a69 as the text (4.55:1)
  • AAA: use #879b8a as the text (7.09:1)
  • AA: or shift the background to #d6d6d6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516153 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

#516153 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #516153
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 #516153 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516153-a2bea9-ac4edf-1f2d27-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