Color
#e21829
#e21829rgb(226, 24, 41)hsl(355, 81%, 49%)oklch(0.582 0.227 25.4)Colors that go with #e21829
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 #e21829: 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 #e21829 — 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 #e21829: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #e21829 in 5 real palettes, including Wired's brand system and Maple, as the accent.
Blue #0000ff
shipped8 real palettes, including native Cybersecurity's brand system and Tim Hortons's brand system put Blue beside #e21829, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #e21829: 14 real palettes, including Netflix's brand system and Target : Expect More. Pay Less.'s brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #e21829: 5 real palettes, including Databricks's brand system and Replit's brand system, as the accent.
Gold #ffd700
shippedGold shows up next to #e21829 in 7 real palettes, including Lay's's brand system and Tabloid, as the lead colour.
Real palettes that use #e21829
Tints & shades
Harmonies
Contrast
| #e21829 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.78:1 | pass | pass | fail |
|
Aaon black | 4.4:1 | 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 #e21829 as the background.
Brands using this color
- Lay'saccent · #df2027 · Δ0.743
- Pinterestprimary · #e40424 · Δ0.756
- Toyotasecondary · #e10a1d · Δ0.967
- Pinterestaccent · #e60023 · Δ0.981
- Netflixprimary · #e50914 · Δ1.311
- Target : Expect More. Pay Less.primary · #dc142c · Δ1.372
- Marvelaccent · #e62429 · Δ1.391
- Formula 1accent · #e8002d · Δ1.393
- Codecademyaccent · #dc2626 · Δ1.43
- Nintendosecondary · #e60012 · Δ1.463
- Lenovosecondary · #e1251b · Δ1.588
- WWEsecondary · #e40707 · Δ1.69
- Budweiserprimary · #dc041c · Δ1.836
- Pinterestsecondary · #dd0e0e · Δ1.946
- Formula 1secondary · #e10600 · Δ1.962
Fonts for this mood
#e21829 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 #e21829 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/e21829-c49e9c-62cb8f-2d241f-f1e9ee?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