brandsweets

Color

#18b451

#18b451
hex#18b451
rgbrgb(24, 180, 81)
hslhsl(142, 76%, 40%)
oklchoklch(0.674 0.184 149)
Closest name: Intoxicate (#11bb55)Relative luminance 0.3343
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
18b451b4187b

#b4187b

Analogous

Open in tool →
18b4512db41818b49f

#2db418 · #18b49f

Triadic

Open in tool →
18b4515118b4b45118

#5118b4 · #b45118

Split-complementary

Open in tool →
18b4519f18b4b4182d

#9f18b4 · #b4182d

Tetradic

Open in tool →
18b451182db4b4187bb49f18

#182db4 · #b4187b · #b49f18

Contrast

#18b451 as textRatioAAAA largeAAAFix
Aaon white
2.73:1failfailfail
  • AA: use #12873d as the text (4.61:1)
  • AAA: use #0e672f as the text (7:1)
  • AA: or shift the background to #333333 (4.62:1)
  • AAA: or shift the background to #0f0f0f (7.02:1)
Aaon black
7.69:1passpasspassPasses 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 #18b451 as the background.

Brands using this color

mcpConnect your agent — build around #18b451
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #18b451 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18b451-a2beaf-c659d4-1f2d2a-eaf1e9?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