brandsweets

Color

#555b68

#555b68
hex#555b68
rgbrgb(85, 91, 104)
hslhsl(221, 10%, 37%)
oklchoklch(0.471 0.022 265.8)
Closest name: Blackwater (#545663)Relative luminance 0.1041
CoolMuted
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
555b68686255

#686255

Analogous

Open in tool →
555b68556468585568

#556468 · #585568

Triadic

Open in tool →
555b6868555b5b6855

#68555b · #5b6855

Split-complementary

Open in tool →
555b68685855646855

#685855 · #646855

Tetradic

Open in tool →
555b68685564686255556858

#685564 · #686255 · #556858

Contrast

#555b68 as textRatioAAAA largeAAAFix
Aaon white
6.81:1passpassfail
  • AAA: use #535865 as the text (7.11:1)
Aaon black
3.08:1failpassfail
  • AA: use #6e7687 as the text (4.6:1)
  • AAA: use #9298a5 as the text (7.26:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #555b68 as the background.

Brands using this color

mcpConnect your agent — build around #555b68
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 #555b68 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/555b68-9ca4c4-df6b4e-211f2d-e9eff1?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