Learning App
Open in tool →Green, blue and orange at full saturation: the gamified-learning look, where every color is a reward.
Color
#39ca12
#39ca12
hex
#39ca12rgb
rgb(57, 202, 18)hsl
hsl(107, 84%, 43%)oklch
oklch(0.734 0.235 140.8)Closest name: Candy Green (#33cc00)Relative luminance 0.4315
Colors that go with #39ca12
Violet, Hot Pink 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.
Violet #ee82ee
complementaryViolet sits directly opposite #39ca12 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 #39ca12: 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 #39ca12: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Dark Orange #ff8c00
shippedDark Orange is paired with #39ca12 in 3 real palettes, including Learning App and Playground, as the accent — a combination designers have actually shipped, not a computed rotation.
Light Coral #f08080
triadicshippedLight Coral completes a triad with #39ca12 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Cornflower Blue #6495ed
triadicshippedCornflower Blue completes a triad with #39ca12 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Mustard Yellow #ffdb58
shippedMustard Yellow is paired with #39ca12 in two real palettes: Meadow and Citrus Grove, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #39ca12 in two real palettes: Ledger Dark and Indigo SaaS, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #39ca12
Tints & shades
Harmonies
Contrast
| #39ca12 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.18:1 | fail | fail | fail | |
Aaon black | 9.63:1 | 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 #39ca12 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
mcpConnect your agent — build around #39ca12
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 #39ca12 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/39ca12-a5bea2-7a4edf-1f2d22-eff1e9?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