Color
#dd0303
#dd0303rgb(221, 3, 3)hsl(0, 97%, 44%)oklch(0.564 0.231 29.1)Colors that go with #dd0303
Charcoal, Royal Blue 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 #dd0303: 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 #dd0303 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #dd0303 — 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 #dd0303: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #dd0303 in 7 real palettes, including McDonald's's brand system and Wired's brand system, as the lead colour.
Blue #0000ff
shipped8 real palettes, including native Cybersecurity's brand system and Doordash's brand system put Blue beside #dd0303, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #dd0303: 5 real palettes, including Behance's brand system and Walgreens's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #dd0303: 18 real palettes, including State Farm's brand system and Netflix's brand system, as the accent.
Real palettes that use #dd0303
Tints & shades
Harmonies
Contrast
| #dd0303 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.14:1 | pass | pass | fail |
|
Aaon black | 4.09:1 | 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 #dd0303 as the background.
Brands using this color
- Pinterestsecondary · #dd0e0e · Δ0.428
- Formula 1secondary · #e10600 · Δ0.873
- MAC Cosmeticssecondary · #da1717 · Δ0.931
- Budweiserprimary · #dc041c · Δ1.063
- M&M'ssecondary · #d70100 · Δ1.278
- Toyotasecondary · #e10a1d · Δ1.397
- WWEsecondary · #e40707 · Δ1.501
- State Farmprimary · #d62311 · Δ1.772
- Burberrysecondary · #d5151f · Δ1.821
- Netflixprimary · #e50914 · Δ1.821
- Vodafoneprimary · #e60000 · Δ1.823
- Vodafoneaccent · #e60000 · Δ1.823
- Nintendosecondary · #e60012 · Δ1.914
- Ferrariprimary · #d40000 · Δ1.916
- Burger Kingprimary · #d62300 · Δ1.917
Fonts for this mood
#dd0303 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 #dd0303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/dd0303-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