Color

#90b508

#90b508
hex#90b508
rgbrgb(144, 181, 8)
hslhsl(73, 92%, 37%)
oklchoklch(0.72 0.175 123.2)
Closest name: Citrus (#9fb70a)Relative luminance 0.3899

Colors that go with #90b508

Charcoal, Dodger Blue and Slate Gray 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 #90b508

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d08b5

#b58408 · #39b508

#0890b5 · #b50890

Split-complementary

Open in tool →

#0839b5 · #8408b5

#08b584 · #2d08b5 · #b50839

Contrast

#90b508 as textRatioAAAA largeAAAFix
Aaon white
2.39:1failfailfail
  • AA: use #657f05 as the text (4.57:1)
  • AAA: use #4a5d04 as the text (7.35:1)
  • AA: or shift the background to #3d3d3d (4.55:1)
  • AAA: or shift the background to #1c1c1c (7.14:1)
Aaon black
8.8:1passpasspassPasses 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 #90b508 as the background.

Brands using this color

mcpConnect your agent — build around #90b508
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 #90b508 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90b508-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