Playground
Open in tool →Orange, blue and green — the colors of playground equipment; loud, cheerful, obviously for kids.
Color
#3c82ecrgb(60, 130, 236)hsl(216, 82%, 58%)oklch(0.617 0.175 258.7)Charcoal, Crimson and Copper 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 is the text near-black for #3c82ec: softer than #000 and cool enough to feel like part of the same palette.
Crimson completes a triad with #3c82ec — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper sits directly opposite #3c82ec on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber is paired with #3c82ec in 11 real palettes, including Heatwave and Walmart's brand system, as the supporting colour.
13 real palettes, including Readymag's brand system and Qualcomm's brand system put Blue beside #3c82ec, as the supporting colour.
Designers have shipped Cobalt Blue with #3c82ec: 8 real palettes, including Carrefour's brand system and Behance's brand system, as the accent.
Designers have shipped Deep Sky Blue with #3c82ec: 8 real palettes, including Patreon's brand system and Figma's brand system, as the supporting colour.
Designers have shipped Denim with #3c82ec: 15 real palettes, including Coursera's brand system and Guinness's brand system, as the accent.
| #3c82ec as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.75:1 | fail | pass | fail | |
Aaon black | 5.6:1 | 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 #3c82ec as the background.
#3c82ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
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 #3c82ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3c82ec-9ca7c4-df5f4e-201f2d-e9f0f1?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