Color
#3fa6a5
#3fa6a5rgb(63, 166, 165)hsl(179, 45%, 45%)oklch(0.666 0.094 194.2)Colors that go with #3fa6a5
Charcoal, Copper and Crimson 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 #3fa6a5: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
shippedDesigners have shipped Copper with #3fa6a5: 5 real palettes, including Dusk and Clean Beauty, as the accent.
Crimson #dc143c
shippedCrimson is paired with #3fa6a5 in 4 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #3fa6a5: 5 real palettes, including Peacock and Open House, as the supporting colour.
Midnight Blue #191970
shipped7 real palettes, including Ford's brand system and Tide Pool put Midnight Blue beside #3fa6a5, as the lead colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #3fa6a5: 4 real palettes, including Ink Wash and First Snow, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #3fa6a5 in 4 real palettes, including Confluent's brand system and Khan Academy's brand system, as the supporting colour.
Pale Violet Red #db7093
complementaryPale Violet Red sits directly opposite #3fa6a5 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 #3fa6a5
Tints & shades
Harmonies
Contrast
| #3fa6a5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.91:1 | fail | fail | fail | |
Aaon black | 7.21:1 | 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 #3fa6a5 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #3fa6a5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3fa6a5-a2bbbe-d45996-1f272d-e9f1ed?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