Color

#91b6b4

#91b6b4
hex#91b6b4
rgbrgb(145, 182, 180)
hslhsl(177, 20%, 64%)
oklchoklch(0.749 0.04 192.2)
Closest name: Cool (#96b3b3)Relative luminance 0.4277

Colors that go with #91b6b4

Charcoal, Dark Salmon and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #91b6b4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b69193

#91b6a1 · #91a5b6

#b491b6 · #b6b491

Split-complementary

Open in tool →

#b691a5 · #b6a191

#a191b6 · #b69193 · #a5b691

Contrast

#91b6b4 as textRatioAAAA largeAAAFix
Aaon white
2.2:1failfailfail
  • AA: use #547d7b as the text (4.57:1)
  • AAA: use #3d5c5a as the text (7.3:1)
  • AA: or shift the background to #424242 (4.57:1)
  • AAA: or shift the background to #242424 (7.06:1)
Aaon black
9.55:1passpasspassPasses 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 #91b6b4 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

mcpConnect your agent — build around #91b6b4
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #91b6b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91b6b4-a2bcbe-d4599b-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