Color

#75ef34

#75ef34
hex#75ef34
rgbrgb(117, 239, 52)
hslhsl(99, 85%, 57%)
oklchoklch(0.848 0.24 137.5)
Closest name: Becquerel (#4bec13)Relative luminance 0.6576

Colors that go with #75ef34

Violet, Charcoal and Deep Sky 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.

Real palettes that use #75ef34

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ad34ef

#d3ef34 · #34ef50

#3475ef · #ef3475

Split-complementary

Open in tool →

#5034ef · #ef34d3

#34d3ef · #ad34ef · #ef5034

Contrast

#75ef34 as textRatioAAAA largeAAAFix
Aaon white
1.48:1failfailfail
  • AA: use #35840b as the text (4.71:1)
  • AAA: use #286308 as the text (7.3:1)
  • AA: or shift the background to #5c5c5c (4.51:1)
  • AAA: or shift the background to #3d3d3d (7.32:1)
Aaon black
14.15:1passpasspassPasses 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 #75ef34 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 #75ef34
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 #75ef34 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/75ef34-a8bea2-664edf-1f2d21-f0f1e9?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