Color

#45a157

#45a157
hex#45a157
rgbrgb(69, 161, 87)
hslhsl(132, 40%, 45%)
oklchoklch(0.635 0.14 147.8)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2744

Colors that go with #45a157

Charcoal, Blue and Crimson 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 →

#a1458e

#60a145 · #45a185

#5745a1 · #a15745

Split-complementary

Open in tool →

#8545a1 · #a14560

#4560a1 · #a1458e · #a18545

Contrast

#45a157 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #398448 as the text (4.6:1)
  • AAA: use #2b6436 as the text (7.05:1)
  • AA: or shift the background to #262626 (4.68:1)
Aaon black
6.49:1passpassfail
  • AAA: use #48a85b as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45a157 as the background.

Brands using this color

mcpConnect your agent — build around #45a157
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 #45a157 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45a157-a2beab-b64edf-1f2d28-ecf1e9?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