Color

#90d129

#90d129
hex#90d129
rgbrgb(144, 209, 41)
hslhsl(83, 67%, 49%)
oklchoklch(0.788 0.198 129.5)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5169

Colors that go with #90d129

Deep Sky Blue, Royal Blue and Taupe 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 →

#6929d1

#d1bd29 · #3dd129

#2990d1 · #d12990

Split-complementary

Open in tool →

#293dd1 · #bd29d1

#29d1bd · #6929d1 · #d1293d

Contrast

#90d129 as textRatioAAAA largeAAAFix
Aaon white
1.85:1failfailfail
  • AA: use #588019 as the text (4.65:1)
  • AAA: use #415e13 as the text (7.41:1)
  • AA: or shift the background to #4d4d4d (4.56:1)
  • AAA: or shift the background to #303030 (7.13:1)
Aaon black
11.34:1passpasspassPasses 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 #90d129 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 #90d129
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 #90d129 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90d129-b0bea2-4e5ddf-222d1f-f1f0e9?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