Color

#216b73

#216b73
hex#216b73
rgbrgb(33, 107, 115)
hslhsl(186, 55%, 29%)
oklchoklch(0.487 0.071 205.4)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1208

Colors that go with #216b73

Charcoal, Crimson and Amber 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 #216b73

Tints & shades

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

Harmonies

Complementary

Open in tool →

#732921

#217352 · #214273

#73216a · #6a7321

Split-complementary

Open in tool →

#732142 · #735221

#522173 · #732921 · #427321

Contrast

#216b73 as textRatioAAAA largeAAAFix
Aaon white
6.15:1passpassfail
  • AAA: use #1e5f67 as the text (7.27:1)
Aaon black
3.42:1failpassfail
  • AA: use #28818a as the text (4.6:1)
  • AAA: use #34a5b2 as the text (7.17:1)
  • AA: or shift the background to #dedede (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 #216b73 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

Fonts for this mood

#216b73 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #216b73
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 #216b73 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/216b73-a2b8be-df4e86-1f262d-e9f1ee?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