Color
#e31102
#e31102rgb(227, 17, 2)hsl(4, 98%, 45%)oklch(0.579 0.232 29.8)Colors that go with #e31102
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 #e31102: 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 #e31102 — 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 #e31102 — 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 #e31102: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #e31102 in 7 real palettes, including Wired's brand system and McDonald's's brand system, as the accent.
Blue #0000ff
shipped8 real palettes, including native Cybersecurity's brand system and Doordash's brand system put Blue beside #e31102, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #e31102: 5 real palettes, including Walgreens's brand system and Behance's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #e31102: 18 real palettes, including Netflix's brand system and McDonald's's brand system, as the accent.
Real palettes that use #e31102
Tints & shades
Harmonies
Contrast
| #e31102 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.83:1 | pass | pass | fail |
|
Aaon black | 4.35:1 | 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 #e31102 as the background.
Brands using this color
- WWEsecondary · #e40707 · Δ0.435
- Formula 1secondary · #e10600 · Δ0.664
- Vodafoneprimary · #e60000 · Δ0.677
- Vodafoneaccent · #e60000 · Δ0.677
- Netflixprimary · #e50914 · Δ0.829
- Nintendosecondary · #e60012 · Δ0.991
- Lenovosecondary · #e1251b · Δ1.287
- Toyotasecondary · #e10a1d · Δ1.319
- Pinterestsecondary · #dd0e0e · Δ1.338
- Gatoradesecondary · #ea0000 · Δ1.34
- Wiredsecondary · #eb0000 · Δ1.529
- Twitchaccent · #eb0400 · Δ1.534
- native Cybersecuritysecondary · #ec0000 · Δ1.722
- Databrickssecondary · #eb1600 · Δ1.735
- Walgreenssecondary · #e62600 · Δ1.735
- LGsecondary · #ea1917 · Δ1.741
- Lay'saccent · #df2027 · Δ1.748
- Doordashsecondary · #eb1700 · Δ1.761
- Pinterestprimary · #e40424 · Δ1.79
- Pinterestaccent · #e60023 · Δ1.835
- MAC Cosmeticssecondary · #da1717 · Δ1.857
- Codecademyaccent · #dc2626 · Δ1.981
Fonts for this mood
#e31102 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 #e31102 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/e31102-c4a39c-62cb9f-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