Color

#40b210

#40b210
hex#40b210
rgbrgb(64, 178, 16)
hslhsl(102, 84%, 38%)
oklchoklch(0.672 0.209 139.4)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.3297

Colors that go with #40b210

Taupe, Medium Orchid and Medium Purple 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 →

#8110b2

#92b210 · #10b230

#1040b2 · #b21040

Split-complementary

Open in tool →

#3010b2 · #b21092

#1092b2 · #8110b2 · #b23010

Contrast

#40b210 as textRatioAAAA largeAAAFix
Aaon white
2.77:1failfailfail
  • AA: use #31880c as the text (4.51:1)
  • AAA: use #246309 as the text (7.33:1)
  • AA: or shift the background to #333333 (4.57:1)
  • AAA: or shift the background to #0d0d0d (7.03:1)
Aaon black
7.59:1passpasspassPasses 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 #40b210 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 #40b210
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 #40b210 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40b210-a7bea2-6e4edf-1f2d21-eff1e9?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