Color

#12f830

#12f830
hex#12f830
rgbrgb(18, 248, 48)
hslhsl(128, 94%, 52%)
oklchoklch(0.85 0.277 143.5)
Closest name: Cyber Neon Green (#00ff26)Relative luminance 0.6748

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f812d9

#66f812 · #12f8a3

#3012f8 · #f83012

Split-complementary

Open in tool →

#a312f8 · #f81266

#1266f8 · #f812d9 · #f8a312

Contrast

#12f830 as textRatioAAAA largeAAAFix
Aaon white
1.45:1failfailfail
  • AA: use #048615 as the text (4.74:1)
  • AAA: use #036811 as the text (7.02:1)
  • AA: or shift the background to #5c5c5c (4.62:1)
  • AAA: or shift the background to #404040 (7.16:1)
Aaon black
14.5:1passpasspassPasses 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 #12f830 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 #12f830
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 #12f830 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12f830-a2bea9-ac4edf-1f2d27-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