Color

#5a636d

#5a636d
hex#5a636d
rgbrgb(90, 99, 109)
hslhsl(212, 10%, 39%)
oklchoklch(0.495 0.02 251)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.122

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d645a

#5a6d6d · #5a5a6d

#6d5a63 · #636d5a

Split-complementary

Open in tool →

#6d5a5a · #6d6d5a

#6d5a6d · #6d645a · #5a6d5a

Contrast

#5a636d as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #505962 as the text (7.13:1)
Aaon black
3.44:1failpassfail
  • AA: use #6c7784 as the text (4.61:1)
  • AAA: use #8f98a3 as the text (7.19:1)
  • AA: or shift the background to #dedede (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 #5a636d as the background.

Brands using this color

mcpConnect your agent — build around #5a636d
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 #5a636d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a636d-9caac4-df564e-1f202d-e9f1f1?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