Color

#16645b

#16645b
hex#16645b
rgbrgb(22, 100, 91)
hslhsl(173, 64%, 24%)
oklchoklch(0.456 0.074 183.5)
Closest name: Mosque (#005f5b)Relative luminance 0.1004

Colors that go with #16645b

Cadet Blue, Champagne and Copper 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 #16645b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#64161f

#166434 · #164664

#5b1664 · #645b16

Split-complementary

Open in tool →

#641646 · #643416

#341664 · #64161f · #466416

Contrast

#16645b as textRatioAAAA largeAAAFix
Aaon white
6.98:1passpassfail
  • AAA: use #156057 as the text (7.39:1)
Aaon black
3.01:1failpassfail
  • AA: use #1c8276 as the text (4.5:1)
  • AAA: use #25a798 as the text (7.06:1)
  • AA: or shift the background to #d1d1d1 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #16645b as the background.

Brands using this color

Fonts for this mood

#16645b reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #16645b
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 #16645b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/16645b-a2bebe-d459a3-1f292d-e9f1ec?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