Color

#99ef48

#99ef48
hex#99ef48
rgbrgb(153, 239, 72)
hslhsl(91, 84%, 61%)
oklchoklch(0.866 0.213 133)
Closest name: Inchworm (#b2ec5d)Relative luminance 0.6897

Colors that go with #99ef48

Violet, Charcoal and Deep Sky Blue 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 →

#9e48ef

#ecef48 · #48ef4b

#4899ef · #ef4899

Split-complementary

Open in tool →

#4b48ef · #ef48ec

#48ecef · #9e48ef · #ef4b48

Contrast

#99ef48 as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #45830b as the text (4.66:1)
  • AAA: use #346309 as the text (7.16:1)
  • AA: or shift the background to #5e5e5e (4.57:1)
  • AAA: or shift the background to #424242 (7.08:1)
Aaon black
14.79:1passpasspassPasses 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 #99ef48 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 #99ef48
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 #99ef48 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/99ef48-acbea2-534edf-202d1f-f1f1e9?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