# #e71a04

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

## Values

- Hex: `#e71a04`
- RGB: rgb(231, 26, 4)
- HSL: hsl(6, 97%, 46%)
- OKLCH: oklch(0.59 0.233 30.3)
- Relative luminance: 0.1774
- Nearest named color: Alarm (#ec0003, Δ 1.183) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e71a04

## Tints & shades

- Tints (toward white): #fb2109, #fc3822, #fc5340, #fc6a59, #fd8072, #fd978b, #feada5, #fec9c3, #fedfdc, #fff6f5
- Shades (toward black): #d31803, #bf1603, #a61303, #921102, #7e0e02, #690c02, #550a01, #3c0701, #280501, #140200

## Harmonies

- Complementary: #04d0e7
- Analogous: #e7045f, #e78c04
- Triadic: #04e71a, #1a04e7
- Split-complementary: #04e78c, #045fe7
- Tetradic: #5fe704, #04d0e7, #8c04e7

## Colors that go with #e71a04

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 #e71a04: 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 #e71a04 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: WWE (https://brandsweets.com/colors/brands/wwe-com), Vercel (https://brandsweets.com/colors/brands/vercel), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #e71a04 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/seagreen
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e71a04: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), NASCAR (https://brandsweets.com/colors/brands/nascar-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 #e71a04 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), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Doordash's brand system and native Cybersecurity's brand system put Blue beside #e71a04, as the accent. Seen in: Doordash (https://brandsweets.com/colors/brands/doordash-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Gap (https://brandsweets.com/colors/brands/gap-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e71a04: 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 #e71a04: 18 real palettes, including Netflix's brand system and McDonald's's brand system, as the accent. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.62:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b01403 (7.12:1)
- On black (#000000): 4.55:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fc6554 (7.13:1)

## Brands using this color

- **Databricks** — secondary #eb1600 (Δ 0.759) — https://brandsweets.com/colors/brands/databricks-com
- **Doordash** — secondary #eb1700 (Δ 0.766) — https://brandsweets.com/colors/brands/doordash-com
- **Walgreens** — secondary #e62600 (Δ 0.918) — https://brandsweets.com/colors/brands/walgreens-com
- **LG** — secondary #ea1917 (Δ 0.922) — https://brandsweets.com/colors/brands/lg-com
- **Twitch** — accent #eb0400 (Δ 0.976) — https://brandsweets.com/colors/brands/twitch-tv
- **Gatorade** — secondary #ea0000 (Δ 0.994) — https://brandsweets.com/colors/brands/gatorade-com
- **Tinder** — secondary #ec180e (Δ 1.046) — https://brandsweets.com/colors/brands/tinder-com
- **Wired** — secondary #eb0000 (Δ 1.06) — https://brandsweets.com/colors/brands/wired-com
- **Vodafone** — primary #e60000 (Δ 1.135) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 1.135) — https://brandsweets.com/colors/brands/vodafone-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.159) — https://brandsweets.com/colors/brands/crowdstrike-com
- **WWE** — secondary #e40707 (Δ 1.236) — https://brandsweets.com/colors/brands/wwe-com
- **Netflix** — primary #e50914 (Δ 1.26) — https://brandsweets.com/colors/brands/netflix
- **Lenovo** — secondary #e1251b (Δ 1.313) — https://brandsweets.com/colors/brands/lenovo-com
- **Nintendo** — secondary #e60012 (Δ 1.376) — https://brandsweets.com/colors/brands/nintendo-com
- **Vercel** — danger #ee0000 (Δ 1.427) — https://brandsweets.com/colors/brands/vercel
- **Pizza Hut** — secondary #e91c24 (Δ 1.492) — https://brandsweets.com/colors/brands/pizzahut-com
- **Marvel** — accent #e62429 (Δ 1.701) — https://brandsweets.com/colors/brands/marvel-com
- **Formula 1** — secondary #e10600 (Δ 1.739) — https://brandsweets.com/colors/brands/formula1-com
- **JBL** — secondary #df2d00 (Δ 1.939) — https://brandsweets.com/colors/brands/jbl-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/e71a04-c4a59c-62cba3-2d271f-f1e9ec?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: "#e71a04" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.