Color

#90a121

#90a121
hex#90a121
rgbrgb(144, 161, 33)
hslhsl(68, 66%, 38%)
oklchoklch(0.673 0.145 117.3)
Closest name: Densetsu Green (#889911)Relative luminance 0.3153

Colors that go with #90a121

Medium Purple, Blue and Charcoal 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 →

#3221a1

#a17221 · #50a121

#2190a1 · #a12190

Split-complementary

Open in tool →

#2150a1 · #7221a1

#21a172 · #3221a1 · #a12150

Contrast

#90a121 as textRatioAAAA largeAAAFix
Aaon white
2.87:1failfailfail
  • AA: use #6e7b19 as the text (4.66:1)
  • AAA: use #535d13 as the text (7.14:1)
  • AA: or shift the background to #303030 (4.59:1)
  • AAA: or shift the background to #050505 (7.09:1)
Aaon black
7.31:1passpasspassPasses 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 #90a121 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 #90a121
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 #90a121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90a121-b7bea2-4e81df-252d1f-f1eee9?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