Color

#155b4e

#155b4e
hex#155b4e
rgbrgb(21, 91, 78)
hslhsl(169, 63%, 22%)
oklchoklch(0.425 0.071 177.3)
Closest name: Evergreen (#125b49)Relative luminance 0.0819

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b1522

#155b2b · #15455b

#4e155b · #5b4e15

Split-complementary

Open in tool →

#5b1545 · #5b2b15

#2b155b · #5b1522 · #455b15

Contrast

#155b4e as textRatioAAAA largeAAAFix
Aaon white
7.96:1passpasspassPasses AAA — no fix needed.
Aaon black
2.64:1failfailfail
  • AA: use #1e8572 as the text (4.65:1)
  • AAA: use #27aa92 as the text (7.25:1)
  • AA: or shift the background to #c4c4c4 (4.56:1)
  • AAA: or shift the background to #f2f2f2 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #155b4e as the background.

Brands using this color

Fonts for this mood

#155b4e reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #155b4e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #155b4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/155b4e-a2bebc-d459ab-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