Coastal
Open in tool →Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.
Color
#90cddf
#90cddf
hex
#90cddfrgb
rgb(144, 205, 223)hsl
hsl(194, 55%, 72%)oklch
oklch(0.813 0.067 218.1)Closest name: Sky Blue (#87ceeb)Relative luminance 0.5492
Colors that go with #90cddf
Charcoal, Dark Salmon and Deep Sky 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 #90cddf: softer than #000 and cool enough to feel like part of the same palette.
Dark Salmon #e9967a
complementaryshippedDark Salmon sits directly opposite #90cddf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #90cddf in 7 real palettes, including Salesforce's brand system and Max's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #90cddf in 5 real palettes, including UEFA's brand system and Nikon's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #90cddf in 7 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
triadicshippedPlum completes a triad with #90cddf — 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 #90cddf in 9 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 #90cddf in 26 real palettes, including Boeing's brand system and Still Water, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #90cddf
Tints & shades
Harmonies
Contrast
| #90cddf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.75:1 | fail | fail | fail | |
Aaon black | 11.98:1 | 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 #90cddf as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#90cddf reads as cool, light, clean. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #90cddf
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 #90cddf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/90cddf-9cb6c4-df4e72-1f242d-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