Color
#81bb58
#81bb58rgb(129, 187, 88)hsl(95, 42%, 54%)oklch(0.73 0.144 133.9)Colors that go with #81bb58
Charcoal, Blue 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #81bb58: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Blue #0000ff
shipped4 real palettes, including Unity's brand system and Spotify's brand system put Blue beside #81bb58, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #81bb58 in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #81bb58: 4 real palettes, including Unity's brand system and Playground, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #81bb58 in 5 real palettes, including Brilliant's brand system and Docker's brand system, as the accent.
Slate Gray #708090
shipped4 real palettes, including Indigo SaaS and Ledger Dark put Slate Gray beside #81bb58, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #81bb58 in 14 real palettes, including Meadow and Citrus Grove, as the text colour against it.
Orchid #da70d6
complementaryOrchid sits directly opposite #81bb58 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #81bb58
Tints & shades
Harmonies
Contrast
| #81bb58 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.29:1 | fail | fail | fail | |
Aaon black | 9.18:1 | 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 #81bb58 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 #81bb58 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/81bb58-aabea2-5d4edf-1f2d20-f0f1e9?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