Color

#aff381

#aff381
hex#aff381
rgbrgb(175, 243, 129)
hslhsl(96, 83%, 73%)
oklchoklch(0.894 0.161 133.9)
Closest name: Cucumber Milk (#c2f177)Relative luminance 0.748

Colors that go with #aff381

Plum, 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 →

#c681f3

#e8f381 · #81f38c

#81aff3 · #f381af

Split-complementary

Open in tool →

#8c81f3 · #f381e8

#81e8f3 · #c681f3 · #f38c81

Contrast

#aff381 as textRatioAAAA largeAAAFix
Aaon white
1.32:1failfailfail
  • AA: use #3c830c as the text (4.73:1)
  • AAA: use #2d6209 as the text (7.34:1)
  • AA: or shift the background to #636363 (4.57:1)
  • AAA: or shift the background to #474747 (7.06:1)
Aaon black
15.96:1passpasspassPasses 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 #aff381 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#aff381 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aff381
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 #aff381 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aff381-aabea2-5f4edf-1f2d20-f0f1e9?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