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
#04a1cd
#04a1cd
hex
#04a1cdrgb
rgb(4, 161, 205)hsl
hsl(193, 96%, 41%)oklch
oklch(0.661 0.126 226.2)Closest name: Blue Ocean (#009dc4)Relative luminance 0.2992
Colors that go with #04a1cd
Charcoal, Tomato and Amber 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 #04a1cd: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
split-complementshippedTomato is a split-complement of #04a1cd: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #04a1cd in 7 real palettes, including Salesforce's brand system and Beach Hut, as the accent.
Blue #0000ff
shipped5 real palettes, including Unity's brand system and Readymag's brand system put Blue beside #04a1cd, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #04a1cd in 5 real palettes, including Diner and Riot Games's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #04a1cd: 11 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour.
Light Sky Blue #87cefa
shippedLight Sky Blue is paired with #04a1cd in 4 real palettes, including Calm's brand system and Salesforce's brand system, as the supporting colour.
Midnight Blue #191970
shipped9 real palettes, including SoFi's brand system and Confluent's brand system put Midnight Blue beside #04a1cd, as the accent.
Real palettes that use #04a1cd
Tints & shades
Harmonies
Contrast
| #04a1cd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.01:1 | fail | pass | fail | |
Aaon black | 6.98:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04a1cd as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#04a1cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #04a1cd
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 #04a1cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/04a1cd-a2b5be-df4e75-1f242d-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