Color

#90b40e

#90b40e
hex#90b40e
rgbrgb(144, 180, 14)
hslhsl(73, 86%, 38%)
oklchoklch(0.717 0.173 123)
Closest name: Citrus (#9fb70a)Relative luminance 0.386

Colors that go with #90b40e

Charcoal, Dodger Blue and Royal 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.

Real palettes that use #90b40e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#320eb4

#b4850e · #3db40e

#0e90b4 · #b40e90

Split-complementary

Open in tool →

#0e3db4 · #850eb4

#0eb485 · #320eb4 · #b40e3d

Contrast

#90b40e as textRatioAAAA largeAAAFix
Aaon white
2.41:1failfailfail
  • AA: use #66800a as the text (4.51:1)
  • AAA: use #4c5f07 as the text (7.13:1)
  • AA: or shift the background to #3d3d3d (4.51:1)
  • AAA: or shift the background to #1c1c1c (7.08:1)
Aaon black
8.72:1passpasspassPasses 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 #90b40e as the background.

Brands using this color

mcpConnect your agent — build around #90b40e
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 #90b40e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90b40e-b5bea2-4e75df-242d1f-f1efe9?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