Playground
Open in tool →Orange, blue and green — the colors of playground equipment; loud, cheerful, obviously for kids.
Color
#01cb66
#01cb66
hex
#01cb66rgb
rgb(1, 203, 102)hsl
hsl(150, 99%, 40%)oklch
oklch(0.737 0.196 151.5)Closest name: Battletoad (#11cc55)Relative luminance 0.4368
Colors that go with #01cb66
Charcoal, Royal 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #01cb66: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
shippedRoyal Blue is paired with #01cb66 in 4 real palettes, including Docker's brand system and MongoDB's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #01cb66 in 6 real palettes, including Obsidian's brand system and WhatsApp's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Violet #ee82ee
complementaryViolet sits directly opposite #01cb66 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Hot Pink #ff69b4
split-complementshippedHot Pink is a split-complement of #01cb66: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cornflower Blue #6495ed
triadicshippedCornflower Blue completes a triad with #01cb66 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Dark Olive Green #556b2f
shippedDark Olive Green is paired with #01cb66 in 3 real palettes, including 7-Eleven's brand system and Undergrowth, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dark Orange #ff8c00
shippedDark Orange is paired with #01cb66 in 3 real palettes, including Playground and Learning App, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #01cb66
Tints & shades
Harmonies
Contrast
| #01cb66 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.16:1 | fail | fail | fail | |
Aaon black | 9.74:1 | 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 #01cb66 as the background.
Brands using this color
Palettes built around it
mcpConnect your agent — build around #01cb66
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #01cb66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/01cb66-a2beb3-d459d2-1f2d2c-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