Color
#3fd1de
#3fd1dergb(63, 209, 222)hsl(185, 71%, 56%)oklch(0.791 0.12 203.8)Colors that go with #3fd1de
Charcoal, Royal Blue and Slate Gray 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 #3fd1de: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
shippedRoyal Blue is paired with #3fd1de in 6 real palettes, including Telehealth and 1password's brand system, as the lead colour.
Slate Gray #708090
shipped4 real palettes, including Still Water and Ledger Dark put Slate Gray beside #3fd1de, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #3fd1de in 14 real palettes, including Crayon Box and Boeing's brand system, as the text colour against it.
Wheat #f5deb3
shippedDesigners have shipped Wheat with #3fd1de: 4 real palettes, including Oatly's brand system and Mint Chip, as the supporting colour.
Salmon #fa8072
complementarySalmon sits directly opposite #3fd1de on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dark Orange #ff8c00
split-complementshippedDark Orange is a split-complement of #3fd1de: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Burlywood #deb887
shippedBurlywood is paired with #3fd1de in 3 real palettes, including Coastal and Polaroid, as the accent.
Real palettes that use #3fd1de
Tints & shades
Harmonies
Contrast
| #3fd1de as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.84:1 | fail | fail | fail | |
Aaon black | 11.39:1 | 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 #3fd1de as the background.
Brands using this color
Fonts for this mood
#3fd1de 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 #3fd1de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3fd1de-a2b8be-df4e88-1f262d-e9f1ee?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