Color

#636d74

#636d74
hex#636d74
rgbrgb(99, 109, 116)
hslhsl(205, 8%, 42%)
oklchoklch(0.529 0.016 238.3)
Closest name: Batman (#656e72)Relative luminance 0.1485

Tints & shades

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

Harmonies

Complementary

Open in tool →

#746a63

#637472 · #636474

#74636d · #6d7463

Split-complementary

Open in tool →

#746364 · #747263

#726374 · #746a63 · #647463

Contrast

#636d74 as textRatioAAAA largeAAAFix
Aaon white
5.29:1passpassfail
  • AAA: use #525a60 as the text (7.02:1)
Aaon black
3.97:1failpassfail
  • AA: use #6c777f as the text (4.58:1)
  • AAA: use #8e989f as the text (7.14:1)
  • AA: or shift the background to #ededed (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 #636d74 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#636d74 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #636d74
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 #636d74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/636d74-9cafc4-df4e58-1f212d-e9f1f0?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