Color

#45a154

#45a154
hex#45a154
rgbrgb(69, 161, 84)
hslhsl(130, 40%, 45%)
oklchoklch(0.634 0.143 146.9)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.274

Colors that go with #45a154

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 →

#a14591

#63a145 · #45a182

#5445a1 · #a15445

Split-complementary

Open in tool →

#8245a1 · #a14563

#4563a1 · #a14591 · #a18245

Contrast

#45a154 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #398445 as the text (4.6:1)
  • AAA: use #2b6434 as the text (7.06:1)
  • AA: or shift the background to #262626 (4.67:1)
Aaon black
6.48:1passpassfail
  • AAA: use #48a858 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45a154 as the background.

Brands using this color

mcpConnect your agent — build around #45a154
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 #45a154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45a154-a2beaa-b14edf-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