Color

#636574

#636574
hex#636574
rgbrgb(99, 101, 116)
hslhsl(233, 8%, 42%)
oklchoklch(0.51 0.024 279.5)
Closest name: Alley Cat (#656874)Relative luminance 0.1322

Tints & shades

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

Harmonies

Complementary

Open in tool →

#747263

#636d74 · #696374

#746365 · #657463

Split-complementary

Open in tool →

#746963 · #6d7463

#74636d · #747263 · #637469

Contrast

#636574 as textRatioAAAA largeAAAFix
Aaon white
5.76:1passpassfail
  • AAA: use #545663 as the text (7.27:1)
Aaon black
3.64:1failpassfail
  • AA: use #737587 as the text (4.62:1)
  • AAA: use #9495a4 as the text (7.09:1)
  • AA: or shift the background to #e6e6e6 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #636574 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

#636574 reads as muted, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #636574
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 #636574 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/636574-9c9cc4-df884e-241f2d-e9eef1?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