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
#0da3c5
#0da3c5
hex
#0da3c5rgb
rgb(13, 163, 197)hsl
hsl(191, 88%, 41%)oklch
oklch(0.662 0.119 220.1)Closest name: Blue Ocean (#009dc4)Relative luminance 0.3031
Colors that go with #0da3c5
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 #0da3c5: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
complementaryshippedTomato sits directly opposite #0da3c5 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #0da3c5 in 6 real palettes, including Beach Hut and Salesforce's brand system, as the supporting colour.
Blue #0000ff
shipped5 real palettes, including Canva's brand system and Warp's brand system put Blue beside #0da3c5, as the accent.
Crimson #dc143c
shippedCrimson is paired with #0da3c5 in 5 real palettes, including Diner and Riot Games's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #0da3c5: 4 real palettes, including Snowflake AI Data Cloud's brand system and Remix's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #0da3c5: 7 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #0da3c5 in 4 real palettes, including Terminal and Olympics's brand system, as the lead colour.
Real palettes that use #0da3c5
Tints & shades
Harmonies
Contrast
| #0da3c5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.97:1 | fail | fail | fail | |
Aaon black | 7.06:1 | 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 #0da3c5 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#0da3c5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #0da3c5
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 #0da3c5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/0da3c5-a2b6be-df4e7a-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