Stone
Open in tool →Stone greys with a faint warmth — Tailwind's stone scale used as a whole palette: interfaces that want to disappear.
Color
#443b40
#443b40
hex
#443b40rgb
rgb(68, 59, 64)hsl
hsl(327, 7%, 25%)oklch
oklch(0.363 0.015 343.3)Closest name: Black Truffle (#463d3e)Relative luminance 0.0473
Colors that go with #443b40
Amber, Blue and Blush Pink 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.
Amber #ffbf00
shippedAmber is paired with #443b40 in 4 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped11 real palettes, including Dunkin''s brand system and Minecraft's brand system put Blue beside #443b40, as the supporting colour.
Blush Pink #e8b4b8
shipped5 real palettes, including Nursery and Garden Wedding put Blush Pink beside #443b40, as the lead colour.
Burlywood #deb887
shippedBurlywood is paired with #443b40 in 5 real palettes, including Polaroid and Velvet, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #443b40: 6 real palettes, including Clean Beauty and Paper & Pine, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #443b40: 10 real palettes, including Notion's brand system and Clean Beauty.
Crimson #dc143c
shippedCrimson is paired with #443b40 in 14 real palettes, including Dunkin''s brand system and Codecademy's brand system, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #443b40 was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #443b40
Tints & shades
Harmonies
Contrast
| #443b40 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.79:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.95:1 | 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 #443b40 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#443b40 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #443b40
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #443b40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/443b40-a2beb0-c859d4-1f2d2b-eaf1e9?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