Color

#a1b337

#a1b337
hex#a1b337
rgbrgb(161, 179, 55)
hslhsl(69, 53%, 46%)
oklchoklch(0.73 0.147 117.3)
Closest name: Citrus (#9fb70a)Relative luminance 0.4009

Colors that go with #a1b337

Blue, Champagne 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 →

#4a37b3

#b38837 · #63b337

#37a1b3 · #b337a1

Split-complementary

Open in tool →

#3763b3 · #8837b3

#37b388 · #4a37b3 · #b33763

Contrast

#a1b337 as textRatioAAAA largeAAAFix
Aaon white
2.33:1failfailfail
  • AA: use #707d26 as the text (4.52:1)
  • AAA: use #545e1d as the text (7.01:1)
  • AA: or shift the background to #3d3d3d (4.66:1)
  • AAA: or shift the background to #1f1f1f (7.08:1)
Aaon black
9.02:1passpasspassPasses 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 #a1b337 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 #a1b337
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 #a1b337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a1b337-b7bea2-4e7edf-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