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
#042e34
#042e34
hex
#042e34rgb
rgb(4, 46, 52)hsl
hsl(188, 86%, 11%)oklch
oklch(0.277 0.045 209.3)Closest name: Black Box (#0f282f)Relative luminance 0.0223
Colors that go with #042e34
Charcoal, Crimson and Sienna 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 #042e34: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #042e34 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sienna #a0522d
split-complementshippedSienna is a split-complement of #042e34: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Steel Blue #4682b4
analogousshippedSteel Blue is #042e34'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 #042e34'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 #042e34 in 18 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour.
Blue #0000ff
shipped23 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #042e34, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #042e34 in 6 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Real palettes that use #042e34
Tints & shades
Harmonies
Contrast
| #042e34 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.53:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.45:1 | 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 #042e34 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
#042e34 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #042e34
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 #042e34 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/042e34-a2b7be-df4e81-1f252d-e9f1ee?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