Lido
Open in tool →Pool blue, watermelon and sun on white — the poolside summer set; the deep teal text keeps it from going juvenile.
Color
#18353f
#18353f
hex
#18353frgb
rgb(24, 53, 63)hsl
hsl(195, 45%, 17%)oklch
oklch(0.311 0.039 222.8)Closest name: Into the Night (#1e3642)Relative luminance 0.031
Colors that go with #18353f
Sienna, Steel Blue and Teal 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.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #18353f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Steel Blue #4682b4
analogousshippedSteel Blue is #18353f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #18353f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #18353f in 6 real palettes, including Beach Hut and Wikipedia's brand system, as the supporting colour.
Blue #0000ff
shipped14 real palettes, including Headspace's brand system and Instacart's brand system put Blue beside #18353f, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #18353f, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #18353f in 5 real palettes, including Coastal and Polaroid, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #18353f: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #18353f
Tints & shades
Harmonies
Contrast
| #18353f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.96:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.62:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18353f as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#18353f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #18353f
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 #18353f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/18353f-9cb5c4-df4e70-1f242d-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