Color
#3f554f
#3f554frgb(63, 85, 79)hsl(164, 15%, 29%)oklch(0.429 0.029 176.3)Colors that go with #3f554f
Blue, Cadet Blue and Copper 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.
Blue #0000ff
shippedBlue is paired with #3f554f in 4 real palettes, including Warp's brand system and Dunkin''s brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #3f554f in 4 real palettes, including Paper & Pine and Dusk, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #3f554f in 4 real palettes, including Desert Road and Clay & Linen, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #3f554f in 4 real palettes, including Codecademy's brand system and Gemstone, as the accent — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #3f554f in 6 real palettes, including HP's brand system and Hinge's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #3f554f in 4 real palettes, including Fireside and Mid-Century, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #3f554f in 5 real palettes, including Microsoft's brand system and First Snow, as the accent — a combination designers have actually shipped, not a computed rotation.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #3f554f was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #3f554f
Tints & shades
Harmonies
Contrast
| #3f554f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.62:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f554f 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
#3f554f reads as muted, dark, luxury. 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 #3f554f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3f554f-a2beba-d459b5-1f2b2d-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