Coastal
Open in tool →Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.
Color
#81cfee
#81cfee
hex
#81cfeergb
rgb(129, 207, 238)hsl
hsl(197, 76%, 72%)oklch
oklch(0.815 0.088 225.4)Closest name: Sky Blue (#87ceeb)Relative luminance 0.5547
Colors that go with #81cfee
Charcoal, Dark Salmon and Midnight 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 #81cfee: softer than #000 and cool enough to feel like part of the same palette.
Dark Salmon #e9967a
complementaryshippedDark Salmon sits directly opposite #81cfee on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Midnight Blue #191970
shippedMidnight Blue is paired with #81cfee in 5 real palettes, including Telehealth and Blue Mono, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Plum #dda0dd
triadicshippedPlum completes a triad with #81cfee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Slate Gray #708090
shippedSlate Gray is paired with #81cfee in 7 real palettes, including Still Water and Dusty Blue, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #81cfee in 23 real palettes, including Boeing's brand system and Macaron, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Light Coral #f08080
split-complementshippedLight Coral is a split-complement of #81cfee: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Burlywood #deb887
shippedBurlywood is paired with #81cfee in 3 real palettes, including Coastal and Polaroid, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #81cfee
Tints & shades
Harmonies
Contrast
| #81cfee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.74:1 | fail | fail | fail | |
Aaon black | 12.09:1 | 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 #81cfee as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#81cfee reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #81cfee
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 #81cfee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/81cfee-9cb4c4-df4e6b-1f232d-e9f1ef?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