Deep Water
Open in tool →Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water.
Color
#18afdc
#18afdc
hex
#18afdcrgb
rgb(24, 175, 220)hsl
hsl(194, 80%, 48%)oklch
oklch(0.703 0.13 225.4)Closest name: Aquarius (#2db0ce)Relative luminance 0.3602
Colors that go with #18afdc
Charcoal, Taupe and Coral 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 #18afdc: softer than #000 and cool enough to feel like part of the same palette.
Taupe #483c32
shippedTaupe is paired with #18afdc in 7 real palettes, including Cursor's brand system and Astro's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Coral #ff7f50
complementaryCoral sits directly opposite #18afdc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Peru #cd853f
split-complementshippedPeru is a split-complement of #18afdc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Midnight Blue #191970
shippedMidnight Blue is paired with #18afdc in 3 real palettes, including Blue Mono and First Snow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Mustard Yellow #ffdb58
shippedMustard Yellow is paired with #18afdc in 3 real palettes, including Lido and Crayon Box, as the accent — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #18afdc in 3 real palettes, including Cursor's brand system and Launch Orange, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Terracotta #e2725b
shippedTerracotta is paired with #18afdc in 3 real palettes, including Alpine and Harbour, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #18afdc
Tints & shades
Harmonies
Contrast
| #18afdc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.56:1 | fail | fail | fail | |
Aaon black | 8.2:1 | 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 #18afdc as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#18afdc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #18afdc
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 #18afdc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/18afdc-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