# #e41b21

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#e41b21`
- RGB: rgb(228, 27, 33)
- HSL: hsl(358, 79%, 50%)
- OKLCH: oklch(0.586 0.228 27.2)
- Relative luminance: 0.1739
- Nearest named color: Alarm (#ec0003, Δ 1.8) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e41b21

## Tints & shades

- Tints (toward white): #e73238, #ea484e, #ec5b60, #ee7276, #f1888c, #f49fa2, #f6b6b8, #f9c8ca, #fbdfe0, #fef6f6
- Shades (toward black): #cd181e, #bb161b, #a41318, #921115, #7b0e12, #640c0f, #520a0c, #3b0709, #290506, #120203

## Harmonies

- Complementary: #1be4de
- Analogous: #e41b86, #e4791b
- Triadic: #21e41b, #1b21e4
- Split-complementary: #1be479, #1b86e4
- Tetradic: #86e41b, #1be4de, #791be4

## Colors that go with #e41b21

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #e41b21: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Logitech (https://brandsweets.com/colors/brands/logitech-com), IHG (https://brandsweets.com/colors/brands/ihg-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #e41b21 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Vercel (https://brandsweets.com/colors/brands/vercel). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e41b21: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wired (https://brandsweets.com/colors/brands/wired-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #e41b21 in 7 real palettes, including Wired's brand system and McDonald's's brand system, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Google (https://brandsweets.com/colors/brands/google-com), Maple (https://brandsweets.com/palettes/warm#maple). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including native Cybersecurity's brand system and Doordash's brand system put Blue beside #e41b21, as the accent. Seen in: native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Gap (https://brandsweets.com/colors/brands/gap-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e41b21: 5 real palettes, including Walgreens's brand system and Behance's brand system, as the accent. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Behance (https://brandsweets.com/colors/brands/behance-net), NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e41b21: 18 real palettes, including Netflix's brand system and Costco's brand system, as the accent. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Costco (https://brandsweets.com/colors/brands/costco-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #e41b21: 6 real palettes, including Databricks's brand system and Google's brand system, as the accent. Seen in: Databricks (https://brandsweets.com/colors/brands/databricks-com), Google (https://brandsweets.com/colors/brands/google-com), Replit (https://brandsweets.com/colors/brands/replit), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/dodgerblue

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 4.69:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ad1419 (7.26:1)
- On black (#000000): 4.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e51f26 (4.56:1); AA: background → #fcfcfc (4.57:1); AAA: text → #ee6d71 (7.06:1)

## Brands using this color

- **Netflix** — primary #e50914 (Δ 0.88) — https://brandsweets.com/colors/brands/netflix
- **Marvel** — accent #e62429 (Δ 0.945) — https://brandsweets.com/colors/brands/marvel-com
- **Lay's** — accent #df2027 (Δ 0.995) — https://brandsweets.com/colors/brands/lays-com
- **Lenovo** — secondary #e1251b (Δ 1.014) — https://brandsweets.com/colors/brands/lenovo-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.057) — https://brandsweets.com/colors/brands/pizzahut-com
- **Nintendo** — secondary #e60012 (Δ 1.094) — https://brandsweets.com/colors/brands/nintendo-com
- **Pinterest** — primary #e40424 (Δ 1.133) — https://brandsweets.com/colors/brands/pinterest-com
- **Pinterest** — accent #e60023 (Δ 1.15) — https://brandsweets.com/colors/brands/pinterest-com
- **Toyota** — secondary #e10a1d (Δ 1.174) — https://brandsweets.com/colors/brands/toyota-com
- **WWE** — secondary #e40707 (Δ 1.245) — https://brandsweets.com/colors/brands/wwe-com
- **LG** — secondary #ea1917 (Δ 1.287) — https://brandsweets.com/colors/brands/lg-com
- **Vodafone** — primary #e60000 (Δ 1.417) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 1.417) — https://brandsweets.com/colors/brands/vodafone-com
- **Codecademy** — accent #dc2626 (Δ 1.537) — https://brandsweets.com/colors/brands/codecademy-com
- **Pepsi** — secondary #e32934 (Δ 1.552) — https://brandsweets.com/colors/brands/pepsi-com
- **Gatorade** — secondary #ea0000 (Δ 1.611) — https://brandsweets.com/colors/brands/gatorade-com
- **KFC** — primary #e4002b (Δ 1.615) — https://brandsweets.com/colors/brands/kfc-com
- **KFC** — secondary #e4002b (Δ 1.615) — https://brandsweets.com/colors/brands/kfc-com
- **NASCAR** — secondary #e4002b (Δ 1.615) — https://brandsweets.com/colors/brands/nascar-com
- **Pringles** — secondary #ea002a (Δ 1.68) — https://brandsweets.com/colors/brands/pringles-com
- **Formula 1** — secondary #e10600 (Δ 1.69) — https://brandsweets.com/colors/brands/formula1-com
- **Twitch** — accent #eb0400 (Δ 1.708) — https://brandsweets.com/colors/brands/twitch-tv
- **Wired** — secondary #eb0000 (Δ 1.718) — https://brandsweets.com/colors/brands/wired-com
- **Formula 1** — accent #e8002d (Δ 1.722) — https://brandsweets.com/colors/brands/formula1-com
- **Tinder** — secondary #ec180e (Δ 1.785) — https://brandsweets.com/colors/brands/tinder-com
- **Databricks** — secondary #eb1600 (Δ 1.818) — https://brandsweets.com/colors/brands/databricks-com
- **Doordash** — secondary #eb1700 (Δ 1.837) — https://brandsweets.com/colors/brands/doordash-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.842) — https://brandsweets.com/colors/brands/crowdstrike-com
- **Walgreens** — primary #e31836 (Δ 1.885) — https://brandsweets.com/colors/brands/walgreens-com
- **Walgreens** — secondary #e62600 (Δ 1.943) — https://brandsweets.com/colors/brands/walgreens-com
- **Pinterest** — secondary #dd0e0e (Δ 1.957) — https://brandsweets.com/colors/brands/pinterest-com
- **Costco** — primary #e31837 (Δ 1.985) — https://brandsweets.com/colors/brands/costco-com

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/e41b21-c49f9c-62cb95-2d251f-f1e9ed?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#e41b21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.