Color

#659e9f

#659e9f
hex#659e9f
rgbrgb(101, 158, 159)
hslhsl(181, 23%, 51%)
oklchoklch(0.66 0.06 197.2)
Closest name: cadetblue (#5f9ea0)Relative luminance 0.2972

Colors that go with #659e9f

Charcoal, Blush Pink and Burlywood 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 #659e9f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f6665

#659f83 · #65819f

#9f659e · #9e9f65

Split-complementary

Open in tool →

#9f6581 · #9f8365

#83659f · #9f6665 · #819f65

Contrast

#659e9f as textRatioAAAA largeAAAFix
Aaon white
3.02:1failpassfail
  • AA: use #4f7d7d as the text (4.6:1)
  • AAA: use #3b5e5e as the text (7.12:1)
  • AA: or shift the background to #2b2b2b (4.68:1)
Aaon black
6.94:1passpassfail
  • AAA: use #68a0a1 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #659e9f 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 #659e9f
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 #659e9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/659e9f-a2babe-d45992-1f272d-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