Color
#3fa9cf
#3fa9cfrgb(63, 169, 207)hsl(196, 60%, 53%)oklch(0.69 0.11 225.8)Colors that go with #3fa9cf
Charcoal, Terracotta 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 #3fa9cf: softer than #000 and cool enough to feel like part of the same palette.
Terracotta #e2725b
complementaryshippedTerracotta sits directly opposite #3fa9cf 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 #3fa9cf in 6 real palettes, including Salesforce's brand system and Blueprint, as the accent.
Blue #0000ff
shipped4 real palettes, including Canva's brand system and Warp's brand system put Blue beside #3fa9cf, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #3fa9cf in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #3fa9cf: 7 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #3fa9cf: 4 real palettes, including Venmo's brand system and Figma's brand system, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including Confluent's brand system and SoFi's brand system put Midnight Blue beside #3fa9cf, as the lead colour.
Real palettes that use #3fa9cf
Tints & shades
Harmonies
Contrast
| #3fa9cf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.7:1 | fail | fail | fail | |
Aaon black | 7.79:1 | 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 #3fa9cf 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
#3fa9cf 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 #3fa9cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3fa9cf-9cb5c4-df4e6e-1f232d-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