Color
#3fca9a
#3fca9argb(63, 202, 154)hsl(159, 57%, 52%)oklch(0.753 0.138 165.7)Colors that go with #3fca9a
Charcoal, Hot Pink and Blue 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 #3fca9a: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink #ff69b4
complementaryshippedHot Pink sits directly opposite #3fca9a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Unity's brand system and Canva's brand system put Blue beside #3fca9a, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #3fca9a in 4 real palettes, including DuckDuckGo's brand system and Tiffany & Co.'s brand system, as the supporting colour.
Mustard Yellow #ffdb58
shipped4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #3fca9a, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #3fca9a in 18 real palettes, including Chime's brand system and Crayon Box, as the lead colour.
Light Coral #f08080
split-complementshippedLight Coral is a split-complement of #3fca9a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #3fca9a: 3 real palettes, including Canva's brand system and Terminal, as the supporting colour.
Real palettes that use #3fca9a
Tints & shades
Harmonies
Contrast
| #3fca9a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.07:1 | fail | fail | fail | |
Aaon black | 10.13:1 | 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 #3fca9a 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 #3fca9a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3fca9a-a2beb8-d459c0-1f2c2d-e9f1eb?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