Color

#42d758

#42d758
hex#42d758
rgbrgb(66, 215, 88)
hslhsl(129, 65%, 55%)
oklchoklch(0.775 0.21 145.5)
Closest name: Green Priestess (#11dd55)Relative luminance 0.5046

Colors that go with #42d758

Blue, Taupe and Violet 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 →

#d742c0

#76d742 · #42d7a3

#5842d7 · #d75842

Split-complementary

Open in tool →

#a342d7 · #d74276

#4276d7 · #d742c0 · #d7a342

Contrast

#42d758 as textRatioAAAA largeAAAFix
Aaon white
1.89:1failfailfail
  • AA: use #1d872c as the text (4.61:1)
  • AAA: use #156521 as the text (7.2:1)
  • AA: or shift the background to #4a4a4a (4.68:1)
  • AAA: or shift the background to #2e2e2e (7.17:1)
Aaon black
11.09:1passpasspassPasses 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 #42d758 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 #42d758
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 #42d758 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42d758-a2bea9-ae4edf-1f2d27-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