Bramble
Open in tool →Blackberry and bark with a wheat highlight on a plum-black surface — late-autumn, quiet, slightly gothic.
Color
#21121d
#21121d
hex
#21121drgb
rgb(33, 18, 29)hsl
hsl(316, 29%, 10%)oklch
oklch(0.208 0.032 337)Closest name: Bats Cloak (#1f1518)Relative luminance 0.0084
Colors that go with #21121d
Charcoal, Dark Olive Green and Sea Green 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 body-text near-black for #21121d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Dark Olive Green #556b2f
split-complementshippedDark Olive Green is a split-complement of #21121d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #21121d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Slate Blue #6a5acd
analogousshippedSlate Blue is #21121d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
split-complementshippedTeal is a split-complement of #21121d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #21121d in 18 real palettes, including Warner Bros.'s brand system and Lemon Squeezy's brand system, as the accent.
Blue #0000ff
shipped23 real palettes, including Warp's brand system and CVS's brand system put Blue beside #21121d, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #21121d in 10 real palettes, including Yahoo's brand system and Prepare your taste buds...'s brand system, as the supporting colour.
Real palettes that use #21121d
Tints & shades
Harmonies
Contrast
| #21121d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.97:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.17:1 | 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 #21121d as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#21121d reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #21121d
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 #21121d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/21121d-c19fb4-79cb62-2d1f23-efe9f1?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