Color

#155b4d

#155b4d
hex#155b4d
rgbrgb(21, 91, 77)
hslhsl(168, 63%, 22%)
oklchoklch(0.425 0.071 176.1)
Closest name: Evergreen (#125b49)Relative luminance 0.0818

Colors that go with #155b4d

Blue, Crimson and Denim 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 #155b4d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b1523

#155b2a · #15465b

#4d155b · #5b4d15

Split-complementary

Open in tool →

#5b1546 · #5b2a15

#2a155b · #5b1523 · #465b15

Contrast

#155b4d as textRatioAAAA largeAAAFix
Aaon white
7.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.64:1failfailfail
  • AA: use #1e8570 as the text (4.64:1)
  • AAA: use #27aa90 as the text (7.24:1)
  • AA: or shift the background to #c4c4c4 (4.57:1)
  • AAA: or shift the background to #f2f2f2 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #155b4d as the background.

Brands using this color

Fonts for this mood

#155b4d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #155b4d
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 #155b4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/155b4d-a2bebc-d459ad-1f2a2d-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