Color

#15655e

#15655e
hex#15655e
rgbrgb(21, 101, 94)
hslhsl(175, 66%, 24%)
oklchoklch(0.459 0.074 186.1)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1027

Colors that go with #15655e

Crimson, Cadet Blue and Champagne 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 #15655e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#66151c

#156636 · #154466

#5f1566 · #665f15

Split-complementary

Open in tool →

#661544 · #663615

#361566 · #66151c · #446615

Contrast

#15655e as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #14615b as the text (7.26:1)
Aaon black
3.05:1failpassfail
  • AA: use #1b837b as the text (4.58:1)
  • AAA: use #23a99e as the text (7.24:1)
  • AA: or shift the background to #d1d1d1 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15655e as the background.

Brands using this color

Fonts for this mood

#15655e reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15655e
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 #15655e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15655e-a2bdbe-d4599f-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