Color
#3ca603
#3ca603rgb(60, 166, 3)hsl(99, 96%, 33%)oklch(0.638 0.2 139)Colors that go with #3ca603
Blue, Dodger Blue and Taupe 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.
Blue #0000ff
shipped5 real palettes, including Spotify's brand system and Instacart's brand system put Blue beside #3ca603, as the accent.
Dodger Blue #1e90ff
triadicshippedDodger Blue completes a triad with #3ca603 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Taupe #483c32
shippedTaupe is paired with #3ca603 in 8 real palettes, including Acer's brand system and Obsidian's brand system, as the text colour against it.
Medium Orchid #ba55d3
complementaryMedium Orchid sits directly opposite #3ca603 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Medium Slate Blue #7b68ee
split-complementshippedMedium Slate Blue is a split-complement of #3ca603: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #3ca603: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Royal Blue #4169e1
shippedRoyal Blue is paired with #3ca603 in 3 real palettes, including Console Light and Telehealth, as the lead colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #3ca603: 3 real palettes, including Olympics's brand system and Fintech Trust, as the lead colour.
Real palettes that use #3ca603
Tints & shades
Harmonies
Contrast
| #3ca603 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.16:1 | fail | pass | fail | |
Aaon black | 6.65:1 | 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 #3ca603 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 #3ca603 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3ca603-a8bea2-664edf-1f2d21-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