Color

#45e377

#45e377
hex#45e377
rgbrgb(69, 227, 119)
hslhsl(139, 74%, 58%)
oklchoklch(0.81 0.198 149.7)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5754

Colors that go with #45e377

Deep Sky Blue, Royal Blue and Taupe 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 →

#e345b1

#62e345 · #45e3c6

#7745e3 · #e37745

Split-complementary

Open in tool →

#c645e3 · #e34562

#4562e3 · #e345b1 · #e3c645

Contrast

#45e377 as textRatioAAAA largeAAAFix
Aaon white
1.68:1failfailfail
  • AA: use #148538 as the text (4.73:1)
  • AAA: use #0f662b as the text (7.1:1)
  • AA: or shift the background to #545454 (4.51:1)
  • AAA: or shift the background to #363636 (7.2:1)
Aaon black
12.51:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45e377 as the background.

Brands using this color

mcpConnect your agent — build around #45e377
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 #45e377 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45e377-a2beae-c059d4-1f2d2a-ebf1e9?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