Color
#428a4e
#428a4ergb(66, 138, 78)hsl(130, 35%, 40%)oklch(0.571 0.116 147.5)Colors that go with #428a4e
Charcoal, Copper 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 #428a4e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Copper #b87333
shippedCopper is paired with #428a4e in 4 real palettes, including Wellness and Riverbed, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #428a4e in 4 real palettes, including Netflix's brand system and Coinbase's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #428a4e — 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 #428a4e in 15 real palettes, including Wellness and Mushroom, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Medium Orchid #ba55d3
complementaryMedium Orchid sits directly opposite #428a4e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Medium Violet Red #c71585
split-complementshippedMedium Violet Red is a split-complement of #428a4e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Midnight Blue #191970
shippedMidnight Blue is paired with #428a4e in 3 real palettes, including Telehealth and Tide Pool, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #428a4e
Tints & shades
Harmonies
Contrast
| #428a4e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.22:1 | fail | pass | fail | |
Aaon black | 4.98:1 | 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 #428a4e 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 #428a4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/428a4e-a2beaa-b14edf-1f2d28-ecf1e9?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