Color

#23e51f

#23e51f
hex#23e51f
rgbrgb(35, 229, 31)
hslhsl(119, 79%, 51%)
oklchoklch(0.802 0.263 142.5)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5649

Colors that go with #23e51f

Taupe, Violet and Dark Orange 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 →

#e11fe5

#85e51f · #1fe57f

#1f23e5 · #e51f23

Split-complementary

Open in tool →

#7f1fe5 · #e51f85

#1f85e5 · #e11fe5 · #e57f1f

Contrast

#23e51f as textRatioAAAA largeAAAFix
Aaon white
1.71:1failfailfail
  • AA: use #128910 as the text (4.55:1)
  • AAA: use #0d640c as the text (7.38:1)
  • AA: or shift the background to #525252 (4.58:1)
  • AAA: or shift the background to #363636 (7.08:1)
Aaon black
12.3:1passpasspassPasses 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 #23e51f 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 #23e51f
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 #23e51f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23e51f-a2bea5-964edf-1f2d25-edf1e9?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