Color
#3fb9de
#3fb9dergb(63, 185, 222)hsl(194, 71%, 56%)oklch(0.734 0.117 222.3)Colors that go with #3fb9de
Charcoal, Amber and Dark Orange 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 #3fb9de: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #3fb9de in 4 real palettes, including Blueprint and Salesforce's brand system, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #3fb9de in 4 real palettes, including Learning App and Elastic's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #3fb9de: 7 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #3fb9de: 4 real palettes, including Patreon's brand system and Figma's brand system, as the accent.
Midnight Blue #191970
shipped8 real palettes, including Confluent's brand system and Kraken's brand system put Midnight Blue beside #3fb9de, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #3fb9de in 10 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Coral #ff7f50
complementaryCoral sits directly opposite #3fb9de on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #3fb9de
Tints & shades
Harmonies
Contrast
| #3fb9de as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.28:1 | fail | fail | fail | |
Aaon black | 9.21:1 | 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 #3fb9de as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#3fb9de reads as cool, vivid, technical. 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 #3fb9de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3fb9de-9cb6c4-df4e72-1f242d-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