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
#153238rgb(21, 50, 56)hsl(190, 45%, 15%)oklch(0.298 0.036 212.9)Rust, Sienna and Steel 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.
Rust sits directly opposite #153238 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sienna is a split-complement of #153238: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Steel Blue is #153238's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal is #153238's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber is paired with #153238 in 8 real palettes, including Beach Hut and Wikipedia's brand system, as the supporting colour.
16 real palettes, including Headspace's brand system and Readymag's brand system put Blue beside #153238, as the accent.
6 real palettes, including Rain Garden and Graphite Mono put Blush Pink beside #153238, as the accent.
White Smoke is the surface for #153238: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
| #153238 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.59:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.55:1 | 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 #153238 as the background.
Pool blue, watermelon and sun on white — the poolside summer set; the deep teal text keeps it from going juvenile.
Wet-leaf teal and moss with a soft peach — an overcast spring, calmer than the bright version and better for long reading.
Dusty teal and mist with a sand accent — low chroma, low contrast between colours, high contrast for text: the recipe for calm.
#153238 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
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 #153238 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/153238-a2b6be-df4e7c-1f252d-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