Color
#d42121
#d42121rgb(212, 33, 33)hsl(0, 73%, 48%)oklch(0.559 0.211 27.6)Colors that go with #d42121
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 #d42121: 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 #d42121 — 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 #d42121: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #d42121 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 #d42121 in 7 real palettes, including McDonald's's brand system and Maple, as the lead colour.
Blue #0000ff
shipped8 real palettes, including Tim Hortons's brand system and Doordash's brand system put Blue beside #d42121, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #d42121: 5 real palettes, including Behance's brand system and Walgreens's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #d42121 in 5 real palettes, including Farmers Market and Magazine Ochre, as the supporting colour.
Real palettes that use #d42121
Tints & shades
Harmonies
Contrast
| #d42121 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.2:1 | pass | pass | fail |
|
Aaon black | 4.04:1 | 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 #d42121 as the background.
Brands using this color
- Burberrysecondary · #d5151f · Δ0.804
- Wells Fargoprimary · #d71e28 · Δ0.864
- State Farmprimary · #d62311 · Δ1.098
- MAC Cosmeticssecondary · #da1717 · Δ1.227
- Foot Lockersecondary · #d12e20 · Δ1.341
- GitHubdanger · #cf222e · Δ1.468
- Burger Kingprimary · #d62300 · Δ1.626
- Coinbasedanger · #cf202f · Δ1.632
- McDonald'ssecondary · #da291c · Δ1.718
- M&M'ssecondary · #d70100 · Δ1.771
- Budweiserprimary · #dc041c · Δ1.787
- Codecademyaccent · #dc2626 · Δ1.841
- Pinterestsecondary · #dd0e0e · Δ1.876
- Tim Hortonssecondary · #d0142c · Δ1.917
- Ferrariprimary · #d40000 · Δ1.921
- Target : Expect More. Pay Less.primary · #dc142c · Δ1.98
- Wiseaccent · #cb272f · Δ1.995
Fonts for this mood
#d42121 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 #d42121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/d42121-c4a19c-62cb98-2d251f-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