Color
#d21c19
#d21c19rgb(210, 28, 25)hsl(1, 79%, 46%)oklch(0.552 0.213 28.4)Colors that go with #d21c19
Charcoal, Royal Blue and Steel Blue 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 #d21c19: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #d21c19 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #d21c19: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #d21c19 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #d21c19 in 4 real palettes, including Maple and Wired's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #d21c19 in 6 real palettes, including Tim Hortons's brand system and native Cybersecurity's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
shippedDark Olive Green is paired with #d21c19 in 5 real palettes, including Farmers Market and Magazine Ochre, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #d21c19 in 12 real palettes, including State Farm's brand system and Target : Expect More. Pay Less.'s brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #d21c19
Tints & shades
Harmonies
Contrast
| #d21c19 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.36:1 | pass | pass | fail |
|
Aaon black | 3.92:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d21c19 as the background.
Brands using this color
- Burberrysecondary · #d5151f · Δ0.84
- State Farmprimary · #d62311 · Δ1.286
- Behanceaccent · #d00d00 · Δ1.302
- M&M'ssecondary · #d70100 · Δ1.394
- MAC Cosmeticssecondary · #da1717 · Δ1.556
- GitHubdanger · #cf222e · Δ1.608
- Foot Lockersecondary · #d12e20 · Δ1.633
- Coinbasedanger · #cf202f · Δ1.745
- Tim Hortonssecondary · #d0142c · Δ1.847
- Wiseaccent · #cb272f · Δ1.993
Fonts for this mood
#d21c19 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 #d21c19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/d21c19-c4a19c-62cb9a-2d261f-f1e9ed?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