Color

#90be3c

#90be3c
hex#90be3c
rgbrgb(144, 190, 60)
hslhsl(81, 52%, 49%)
oklchoklch(0.744 0.164 126.9)
Closest name: Citrus (#9fb70a)Relative luminance 0.4308

Colors that go with #90be3c

Charcoal, Blue and Dark Olive Green 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 →

#693cbe

#beaa3c · #4fbe3c

#3c90be · #be3c90

Split-complementary

Open in tool →

#3c4fbe · #aa3cbe

#3cbeaa · #693cbe · #be3c4f

Contrast

#90be3c as textRatioAAAA largeAAAFix
Aaon white
2.18:1failfailfail
  • AA: use #618028 as the text (4.54:1)
  • AAA: use #475d1d as the text (7.36:1)
  • AA: or shift the background to #424242 (4.6:1)
  • AAA: or shift the background to #242424 (7.11:1)
Aaon black
9.62:1passpasspassPasses 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 #90be3c as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #90be3c
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 #90be3c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90be3c-b1bea2-4e62df-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