Color
#78d9cc
#78d9ccrgb(120, 217, 204)hsl(172, 56%, 66%)oklch(0.822 0.094 184.4)Colors that go with #78d9cc
Charcoal, Light Coral and Crimson 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 #78d9cc: softer than #000 and cool enough to feel like part of the same palette.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #78d9cc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #78d9cc in 4 real palettes, including Tiffany & Co.'s brand system and Frost & Ember, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #78d9cc: 6 real palettes, including Salesforce's brand system and Astro's brand system, as the lead colour.
Midnight Blue #191970
shipped4 real palettes, including First Snow and Telehealth put Midnight Blue beside #78d9cc, as the text colour against it.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #78d9cc: 4 real palettes, including Scale AI's brand system and Stone, as the supporting colour.
Slate Gray #708090
shipped8 real palettes, including Still Water and Dusty Blue put Slate Gray beside #78d9cc, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #78d9cc in 23 real palettes, including Mint Chip and Blossom, as the text colour against it.
Real palettes that use #78d9cc
Tints & shades
Harmonies
Contrast
| #78d9cc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.67:1 | fail | fail | fail | |
Aaon black | 12.6:1 | 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 #78d9cc as the background.
Brands using this color
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 #78d9cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/78d9cc-a2bebe-d459a5-1f292d-e9f1ec?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