Color

#a5b431

#a5b431
hex#a5b431
rgbrgb(165, 180, 49)
hslhsl(67, 57%, 45%)
oklchoklch(0.735 0.15 116)
Closest name: Citrus (#9fb70a)Relative luminance 0.4086

Colors that go with #a5b431

Blue, Champagne 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 →

#4131b4

#b48231 · #63b431

#31a5b4 · #b431a5

Split-complementary

Open in tool →

#3163b4 · #8231b4

#31b482 · #4131b4 · #b43163

Contrast

#a5b431 as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #727c22 as the text (4.54:1)
  • AAA: use #545c19 as the text (7.19:1)
  • AA: or shift the background to #404040 (4.53:1)
  • AAA: or shift the background to #212121 (7.03:1)
Aaon black
9.17:1passpasspassPasses 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 #a5b431 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 #a5b431
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 #a5b431 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a5b431-b8bea2-4e83df-262d1f-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