Color

#5dc309

#5dc309
hex#5dc309
rgbrgb(93, 195, 9)
hslhsl(93, 91%, 40%)
oklchoklch(0.727 0.216 136.5)
Closest name: Frog (#58bc08)Relative luminance 0.4138

Colors that go with #5dc309

Blue, Charcoal and Royal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6f09c3

#bac309 · #09c312

#095dc3 · #c3095d

Split-complementary

Open in tool →

#1209c3 · #c309ba

#09bac3 · #6f09c3 · #c31209

Contrast

#5dc309 as textRatioAAAA largeAAAFix
Aaon white
2.26:1failfailfail
  • AA: use #3f8406 as the text (4.65:1)
  • AAA: use #2e6105 as the text (7.43:1)
  • AA: or shift the background to #404040 (4.58:1)
  • AAA: or shift the background to #212121 (7.11:1)
Aaon black
9.28:1passpasspassPasses 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 #5dc309 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 #5dc309
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 #5dc309 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5dc309-abbea2-584edf-202d1f-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