# #e51915

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

## Values

- Hex: `#e51915`
- RGB: rgb(229, 25, 21)
- HSL: hsl(1, 83%, 49%)
- OKLCH: oklch(0.586 0.23 28.8)
- Relative luminance: 0.1741
- Nearest named color: Alarm (#ec0003, Δ 1.401) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e51915

## Tints & shades

- Tints (toward white): #eb2c28, #ed4340, #ef5a57, #f2716e, #f48886, #f59a98, #f8b1b0, #fac8c7, #fcdfde, #fef6f6
- Shades (toward black): #d21714, #bb1411, #a81210, #91100d, #7e0e0c, #670b0a, #540908, #3d0706, #2a0504, #130202

## Harmonies

- Complementary: #15e1e5
- Analogous: #e51579, #e58015
- Triadic: #15e519, #1915e5
- Split-complementary: #15e580, #1579e5
- Tetradic: #79e515, #15e1e5, #8015e5

## Colors that go with #e51915

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 #e51915: 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 #e51915 — 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), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Toyota (https://brandsweets.com/colors/brands/toyota-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 #e51915: 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 #e51915 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 Doordash's brand system and native Cybersecurity's brand system put Blue beside #e51915, as the accent. Seen in: Doordash (https://brandsweets.com/colors/brands/doordash-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-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 #e51915: 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 #e51915: 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), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #e51915: 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 → #b11310 (7.07:1)
- On black (#000000): 4.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e91916 (4.62:1); AA: background → #fcfcfc (4.57:1); AAA: text → #f16c6a (7.09:1)

## Brands using this color

- **Netflix** — primary #e50914 (Δ 0.723) — https://brandsweets.com/colors/brands/netflix
- **WWE** — secondary #e40707 (Δ 0.886) — https://brandsweets.com/colors/brands/wwe-com
- **Nintendo** — secondary #e60012 (Δ 0.934) — https://brandsweets.com/colors/brands/nintendo-com
- **Lenovo** — secondary #e1251b (Δ 0.945) — https://brandsweets.com/colors/brands/lenovo-com
- **Vodafone** — primary #e60000 (Δ 0.973) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 0.973) — https://brandsweets.com/colors/brands/vodafone-com
- **LG** — secondary #ea1917 (Δ 1.023) — https://brandsweets.com/colors/brands/lg-com
- **Gatorade** — secondary #ea0000 (Δ 1.148) — https://brandsweets.com/colors/brands/gatorade-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.222) — https://brandsweets.com/colors/brands/pizzahut-com
- **Twitch** — accent #eb0400 (Δ 1.244) — https://brandsweets.com/colors/brands/twitch-tv
- **Wired** — secondary #eb0000 (Δ 1.273) — https://brandsweets.com/colors/brands/wired-com
- **Databricks** — secondary #eb1600 (Δ 1.307) — https://brandsweets.com/colors/brands/databricks-com
- **Marvel** — accent #e62429 (Δ 1.308) — https://brandsweets.com/colors/brands/marvel-com
- **Doordash** — secondary #eb1700 (Δ 1.328) — https://brandsweets.com/colors/brands/doordash-com
- **Toyota** — secondary #e10a1d (Δ 1.408) — https://brandsweets.com/colors/brands/toyota-com
- **Formula 1** — secondary #e10600 (Δ 1.414) — https://brandsweets.com/colors/brands/formula1-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.417) — https://brandsweets.com/colors/brands/crowdstrike-com
- **Tinder** — secondary #ec180e (Δ 1.418) — https://brandsweets.com/colors/brands/tinder-com
- **Walgreens** — secondary #e62600 (Δ 1.438) — https://brandsweets.com/colors/brands/walgreens-com
- **Lay's** — accent #df2027 (Δ 1.476) — https://brandsweets.com/colors/brands/lays-com
- **Pinterest** — accent #e60023 (Δ 1.498) — https://brandsweets.com/colors/brands/pinterest-com
- **Pinterest** — primary #e40424 (Δ 1.543) — https://brandsweets.com/colors/brands/pinterest-com
- **Vercel** — danger #ee0000 (Δ 1.742) — https://brandsweets.com/colors/brands/vercel
- **Codecademy** — accent #dc2626 (Δ 1.856) — https://brandsweets.com/colors/brands/codecademy-com
- **Pinterest** — secondary #dd0e0e (Δ 1.912) — https://brandsweets.com/colors/brands/pinterest-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/e51915-c4a19c-62cb9a-2d261f-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: "#e51915" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.