Velvet
Open in tool →Burgundy and plum on near-black with a brass accent — theatre, wine, and anything that wants to feel after-dark.
Color
#a21135
#a21135
hex
#a21135rgb
rgb(162, 17, 53)hsl
hsl(345, 81%, 35%)oklch
oklch(0.459 0.174 15.9)Closest name: Cranberry (#9e003a)Relative luminance 0.0834
Colors that go with #a21135
Royal Blue, Teal 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #a21135 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #a21135 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped4 real palettes, including Woodsmoke and Bramble put Champagne beside #a21135, as the text colour against it.
Denim #1560bd
shippedDesigners have shipped Denim with #a21135: 7 real palettes, including State Farm's brand system and Nissan's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #a21135 in 4 real palettes, including Fireside and Candlelight, as the accent.
Hunter Green #355e3b
shippedHunter Green is paired with #a21135 in 4 real palettes, including Fireside and Bookshop, as the supporting colour.
Slate Gray #708090
shipped5 real palettes, including Typewriter and Newsprint put Slate Gray beside #a21135, as the supporting colour.
Charcoal #36454f
neutralCharcoal is the body-text near-black for #a21135: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a21135
Tints & shades
Harmonies
Contrast
| #a21135 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.87:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.67:1 | 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 #a21135 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
Garnet
Open in tool →Garnet, carnelian and citrine on a wine-black — the warm jewel set for spirits, theatre and jewellery itself.
Fonts for this mood
#a21135 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #a21135
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 #a21135 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/a21135-c49ca1-62cb7e-2d221f-f1e9ef?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