Color

#63656e

#63656e
hex#63656e
rgbrgb(99, 101, 110)
hslhsl(229, 5%, 41%)
oklchoklch(0.508 0.014 275.9)
Closest name: Alley Cat (#656874)Relative luminance 0.1309

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e6c63

#636a6e · #67636e

#6e6365 · #656e63

Split-complementary

Open in tool →

#6e6763 · #6a6e63

#6e636a · #6e6c63 · #636e67

Contrast

#63656e as textRatioAAAA largeAAAFix
Aaon white
5.81:1passpassfail
  • AAA: use #55565e as the text (7.29:1)
Aaon black
3.62:1failpassfail
  • AA: use #72747e as the text (4.51:1)
  • AAA: use #94969e as the text (7.12:1)
  • AA: or shift the background to #e3e3e3 (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 #63656e 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

#63656e reads as neutral, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #63656e
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 #63656e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/63656e-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