Color
#66a136
#66a136rgb(102, 161, 54)hsl(93, 50%, 42%)oklch(0.646 0.152 133.7)Colors that go with #66a136
Charcoal, Blue and Crimson 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 #66a136: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Blue #0000ff
shipped4 real palettes, including Spotify's brand system and Unity's brand system put Blue beside #66a136, as the accent.
Crimson #dc143c
shippedCrimson is paired with #66a136 in 5 real palettes, including DuckDuckGo's brand system and Five Guys's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #66a136: 4 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Dodger Blue #1e90ff
triadicshippedDodger Blue completes a triad with #66a136 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Midnight Blue #191970
shipped4 real palettes, including Telehealth and Fintech Trust put Midnight Blue beside #66a136, as the text colour against it.
Royal Blue #4169e1
shippedRoyal Blue is paired with #66a136 in 5 real palettes, including Console Light and Telehealth, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #66a136 in 12 real palettes, including Undergrowth and Meadow, as the surface under it.
Real palettes that use #66a136
Tints & shades
Harmonies
Contrast
| #66a136 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.13:1 | fail | pass | fail | |
Aaon black | 6.72:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66a136 as the background.
Brands using this color
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 #66a136 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/66a136-abbea2-584edf-202d1f-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