Color

#91acab

#91acab
hex#91acab
rgbrgb(145, 172, 171)
hslhsl(178, 14%, 62%)
oklchoklch(0.724 0.03 193.8)
Closest name: Crown of Ash (#a1a9a9)Relative luminance 0.3847

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ac9191

#91ac9d · #919fac

#ab91ac · #acab91

Split-complementary

Open in tool →

#ac919f · #ac9d91

#9d91ac · #ac9191 · #9fac91

Contrast

#91acab as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #5c7a79 as the text (4.65:1)
  • AAA: use #465d5c as the text (7.05:1)
  • AA: or shift the background to #3b3b3b (4.64:1)
  • AAA: or shift the background to #1c1c1c (7.05:1)
Aaon black
8.69:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #91acab as the background.

Brands using this color

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

mcpConnect your agent — build around #91acab
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 #91acab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91acab-a2bcbe-d45999-1f282d-e9f1ed?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