Color
#3a9877
#3a9877rgb(58, 152, 119)hsl(159, 45%, 41%)oklch(0.615 0.102 166.6)Colors that go with #3a9877
Charcoal, Crimson and Medium Violet Red 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 text near-black for #3a9877: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #3a9877: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Medium Violet Red #c71585
complementaryshippedMedium Violet Red sits directly opposite #3a9877 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Chocolate #d2691e
triadicshippedChocolate completes a triad with #3a9877 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper #b87333
shippedDesigners have shipped Copper with #3a9877: 5 real palettes, including Wellness and Clean Beauty, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #3a9877: 5 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Midnight Blue #191970
shipped6 real palettes, including Tide Pool and Fintech Trust put Midnight Blue beside #3a9877, as that palette's text colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #3a9877 in 6 real palettes, including Subaru's brand system and Coinbase's brand system, as the supporting colour.
Tints & shades
Harmonies
Contrast
| #3a9877 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.54:1 | fail | pass | fail | |
Aaon black | 5.94:1 | 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 #3a9877 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 #3a9877 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3a9877-a2beb8-d459c0-1f2c2d-e9f1eb?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