Color
#81aa09
#81aa09rgb(129, 170, 9)hsl(75, 90%, 35%)oklch(0.683 0.17 125.2)Colors that go with #81aa09
Medium Purple, Taupe and Cornflower Blue 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.
Medium Purple #9370db
complementaryshippedMedium Purple sits directly opposite #81aa09 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Taupe #483c32
shippedTaupe is paired with #81aa09 in 10 real palettes, including Acer's brand system and Meadow, as the text colour against it.
Cornflower Blue #6495ed
split-complementshippedCornflower Blue is a split-complement of #81aa09: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue #0000ff
shipped3 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #81aa09, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #81aa09: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #81aa09 in 3 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #81aa09 in 3 real palettes, including Citrus Grove and Playground, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #81aa09: 3 real palettes, including Spline's brand system and Playground, as the lead colour.
Real palettes that use #81aa09
Tints & shades
Harmonies
Contrast
| #81aa09 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.73:1 | fail | fail | fail | |
Aaon black | 7.69:1 | pass | pass | pass | Passes 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 #81aa09 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #81aa09 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/81aa09-b4bea2-4e70df-242d1f-f1efe9?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md