Color
#3f7366
#3f7366rgb(63, 115, 102)hsl(165, 29%, 35%)oklch(0.515 0.06 175.8)Colors that go with #3f7366
Charcoal, Medium Violet Red and Champagne 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 #3f7366: softer than #000 and cool enough to feel like part of the same palette.
Medium Violet Red #c71585
complementaryshippedMedium Violet Red sits directly opposite #3f7366 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped5 real palettes, including Forest Floor and Darkroom put Champagne beside #3f7366, as that palette's text colour.
Copper #b87333
shippedDesigners have shipped Copper with #3f7366: 5 real palettes, including Riverbed and Clay & Linen, as the accent.
Crimson #dc143c
shippedCrimson is paired with #3f7366 in 7 real palettes, including Gemstone and Five Guys's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #3f7366: 11 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #3f7366 in 5 real palettes, including Mid-Century and Sapphire & Gold, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #3f7366 in 4 real palettes, including Undergrowth and Indigo SaaS, as the lead colour.
Real palettes that use #3f7366
Tints & shades
Harmonies
Contrast
| #3f7366 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.45:1 | pass | pass | fail |
|
Aaon black | 3.86:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f7366 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 #3f7366 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3f7366-a2beba-d459b3-1f2b2d-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