Color

#90fb04

#90fb04
hex#90fb04
rgbrgb(144, 251, 4)
hslhsl(86, 97%, 50%)
oklchoklch(0.888 0.252 133.6)
Closest name: Acid Green (#8ffe09)Relative luminance 0.7493

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6f04fb

#fbeb04 · #14fb04

#0490fb · #fb0490

Split-complementary

Open in tool →

#0414fb · #eb04fb

#04fbeb · #6f04fb · #fb0414

Contrast

#90fb04 as textRatioAAAA largeAAAFix
Aaon white
1.31:1failfailfail
  • AA: use #4b8302 as the text (4.62:1)
  • AAA: use #375f01 as the text (7.5:1)
  • AA: or shift the background to #636363 (4.57:1)
  • AAA: or shift the background to #474747 (7.07:1)
Aaon black
15.99:1passpasspassPasses 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 #90fb04 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 #90fb04
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 #90fb04 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90fb04-afbea2-4e56df-212d1f-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