Color
#42f09f
#42f09frgb(66, 240, 159)hsl(152, 85%, 60%)oklch(0.849 0.18 157.9)Colors that go with #42f09f
Taupe, Violet and Charcoal 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.
Taupe #483c32
shippedTaupe is paired with #42f09f in 4 real palettes, including 7-Eleven's brand system and Astro's brand system, as the lead colour.
Violet #ee82ee
complementaryViolet sits directly opposite #42f09f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #42f09f: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #42f09f in 3 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #42f09f: 3 real palettes, including Prime Video's brand system and Remix's brand system, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #42f09f in 3 real palettes, including MongoDB's brand system and Docker's brand system, as the supporting colour.
Light Coral #f08080
split-complementLight Coral is a split-complement of #42f09f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Hunter Green #355e3b
shippedHunter Green is paired with #42f09f in two real palettes: Neon's brand system and Canopy, as the supporting colour.
Real palettes that use #42f09f
Tints & shades
Harmonies
Contrast
| #42f09f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.48:1 | fail | fail | fail | |
Aaon black | 14.2:1 | 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 #42f09f 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 #42f09f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/42f09f-a2beb4-d459ce-1f2d2d-e9f1ea?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