Color
#66cccc
#66ccccrgb(102, 204, 204)hsl(180, 50%, 60%)oklch(0.785 0.095 195.4)Colors that go with #66cccc
Charcoal, Light Coral and Dodger Blue 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 #66cccc: softer than #000 and cool enough to feel like part of the same palette.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #66cccc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #66cccc in 4 real palettes, including Patreon's brand system and Opensea's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #66cccc in 5 real palettes, including Telehealth and First Snow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Plum #dda0dd
split-complementshippedPlum is a split-complement of #66cccc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Powder Blue #b0e0e6
shippedPowder Blue is paired with #66cccc in 4 real palettes, including Audible's brand system and First Snow, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #66cccc in 6 real palettes, including Docker's brand system and Brilliant's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #66cccc in 8 real palettes, including Still Water and Ledger Dark, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #66cccc
Tints & shades
Harmonies
Contrast
| #66cccc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.9:1 | fail | fail | fail | |
Aaon black | 11.07:1 | 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 #66cccc as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#66cccc reads as cool, modern. 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 #66cccc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/66cccc-a2bbbe-d45994-1f272d-e9f1ed?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