Color

#515d52

#515d52
hex#515d52
rgbrgb(81, 93, 82)
hslhsl(125, 7%, 34%)
oklchoklch(0.464 0.023 147.5)
Closest name: Muddy Olive (#4b5d46)Relative luminance 0.1019

Colors that go with #515d52

Blush Pink, Cadet Blue and Champagne lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #515d52

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d515c

#565d51 · #515d58

#52515d · #5d5251

Split-complementary

Open in tool →

#58515d · #5d5156

#51565d · #5d515c · #5d5851

Contrast

#515d52 as textRatioAAAA largeAAAFix
Aaon white
6.91:1passpassfail
  • AAA: use #4e5a4f as the text (7.24:1)
Aaon black
3.04:1failpassfail
  • AA: use #6b7b6c as the text (4.67:1)
  • AAA: use #8a998b as the text (7.01:1)
  • AA: or shift the background to #d1d1d1 (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 #515d52 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

#515d52 reads as neutral, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515d52
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #515d52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515d52-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