Color

#1fb23d

#1fb23d
hex#1fb23d
rgbrgb(31, 178, 61)
hslhsl(132, 70%, 41%)
oklchoklch(0.667 0.197 145.5)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.3247

Colors that go with #1fb23d

Royal Blue, Taupe and Fuchsia 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 →

#b21f94

#4bb21f · #1fb286

#3d1fb2 · #b23d1f

Split-complementary

Open in tool →

#861fb2 · #b21f4b

#1f4bb2 · #b21f94 · #b2861f

Contrast

#1fb23d as textRatioAAAA largeAAAFix
Aaon white
2.8:1failfailfail
  • AA: use #18862e as the text (4.68:1)
  • AAA: use #126422 as the text (7.31:1)
  • AA: or shift the background to #333333 (4.51:1)
  • AAA: or shift the background to #0a0a0a (7.06:1)
Aaon black
7.49:1passpasspassPasses 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 #1fb23d 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 #1fb23d
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 #1fb23d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fb23d-a2beab-b64edf-1f2d28-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