Color
#a21549
#a21549rgb(162, 21, 73)hsl(338, 77%, 36%)oklch(0.466 0.174 6.8)Colors that go with #a21549
Teal, Crimson and Denim 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.
Teal #008080
complementaryshippedTeal sits directly opposite #a21549 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #a21549 in 7 real palettes, including Wendy's's brand system and State Farm's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #a21549: 6 real palettes, including Chase's brand system and State Farm's brand system, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #a21549 in 4 real palettes, including Fireside and Candlelight, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #a21549 in 4 real palettes, including Chase's brand system and Bose's brand system, as the supporting colour.
Slate Gray #708090
shipped4 real palettes, including Typewriter and Newsprint put Slate Gray beside #a21549, as the supporting colour.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #a21549: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralCharcoal is the body-text near-black for #a21549: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a21549
Tints & shades
Harmonies
Contrast
| #a21549 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.66:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.74:1 | 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 #a21549 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
#a21549 reads as warm, vivid, playful. 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 #a21549 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a21549-c49ca6-62cb72-2d201f-f1e9f0?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