Color

#45f538

#45f538
hex#45f538
rgbrgb(69, 245, 56)
hslhsl(116, 90%, 59%)
oklchoklch(0.849 0.262 142.1)
Closest name: Becquerel (#4bec13)Relative luminance 0.6686

Colors that go with #45f538

Violet, Deep Sky Blue and Hot Pink 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 #45f538

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e838f5

#a3f538 · #38f58a

#3845f5 · #f53845

Split-complementary

Open in tool →

#8a38f5 · #f538a3

#38a3f5 · #e838f5 · #f58a38

Contrast

#45f538 as textRatioAAAA largeAAAFix
Aaon white
1.46:1failfailfail
  • AA: use #108807 as the text (4.62:1)
  • AAA: use #0c6605 as the text (7.2:1)
  • AA: or shift the background to #5c5c5c (4.58:1)
  • AAA: or shift the background to #404040 (7.1:1)
Aaon black
14.37:1passpasspassPasses 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 #45f538 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 #45f538
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 #45f538 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45f538-a2bea3-8f4edf-1f2d24-eef1e9?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