Color

#1d9155

#1d9155
hex#1d9155
rgbrgb(29, 145, 85)
hslhsl(149, 67%, 34%)
oklchoklch(0.581 0.135 154.7)
Closest name: seagreen (#2e8b57)Relative luminance 0.2117

Colors that go with #1d9155

Charcoal, Crimson and Royal Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#911d59

#1f911d · #1d918f

#551d91 · #91551d

Split-complementary

Open in tool →

#8f1d91 · #911d1f

#1d1f91 · #911d59 · #918f1d

Contrast

#1d9155 as textRatioAAAA largeAAAFix
Aaon white
4.01:1failpassfail
  • AA: use #1a844d as the text (4.72:1)
  • AAA: use #14663c as the text (7.01:1)
  • AA: or shift the background to #141414 (4.59:1)
Aaon black
5.23:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d9155 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #1d9155
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 #1d9155 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d9155-a2beb3-d459d4-1f2d2c-e9f1e9?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