# #e91c1c

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

## Values

- Hex: `#e91c1c`
- RGB: rgb(233, 28, 28)
- HSL: hsl(0, 82%, 51%)
- OKLCH: oklch(0.595 0.232 28.2)
- Relative luminance: 0.1824
- Nearest named color: Alarm (#ec0003, Δ 1.18) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e91c1c

## Tints & shades

- Tints (toward white): #eb3333, #ed4545, #ef5d5d, #f17474, #f48b8b, #f59e9e, #f8b5b5, #facccc, #fcdfdf, #fef6f6
- Shades (toward black): #d51515, #c31313, #ac1111, #950f0f, #820d0d, #6b0b0b, #540808, #3c0606, #2a0404, #130202

## Harmonies

- Complementary: #1ce9e9
- Analogous: #e91c82, #e9821c
- Triadic: #1ce91c, #1c1ce9
- Split-complementary: #1ce982, #1c82e9
- Tetradic: #82e91c, #1ce9e9, #821ce9

## Colors that go with #e91c1c

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 #e91c1c: 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), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #e91c1c — 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), Vercel (https://brandsweets.com/colors/brands/vercel), WWE (https://brandsweets.com/colors/brands/wwe-com), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e91c1c: 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 #e91c1c 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 #e91c1c, 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 #e91c1c: 5 real palettes, including Walgreens's brand system and NASA's brand system, as the accent. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Behance (https://brandsweets.com/colors/brands/behance-net), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e91c1c: 18 real palettes, including Netflix's brand system and ElevenLabs's brand system, as the accent. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Costco (https://brandsweets.com/colors/brands/costco-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #e91c1c: 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): 4.52:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b01111 (7.16:1)
- On black (#000000): 4.65:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f16f6f (7.24:1)

## Brands using this color

- **LG** — secondary #ea1917 (Δ 0.291) — https://brandsweets.com/colors/brands/lg-com
- **Pizza Hut** — secondary #e91c24 (Δ 0.513) — https://brandsweets.com/colors/brands/pizzahut-com
- **Tinder** — secondary #ec180e (Δ 0.776) — https://brandsweets.com/colors/brands/tinder-com
- **Marvel** — accent #e62429 (Δ 0.944) — https://brandsweets.com/colors/brands/marvel-com
- **Databricks** — secondary #eb1600 (Δ 0.997) — https://brandsweets.com/colors/brands/databricks-com
- **Doordash** — secondary #eb1700 (Δ 1.005) — https://brandsweets.com/colors/brands/doordash-com
- **Twitch** — accent #eb0400 (Δ 1.145) — https://brandsweets.com/colors/brands/twitch-tv
- **Wired** — secondary #eb0000 (Δ 1.213) — https://brandsweets.com/colors/brands/wired-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.221) — https://brandsweets.com/colors/brands/crowdstrike-com
- **Gatorade** — secondary #ea0000 (Δ 1.239) — https://brandsweets.com/colors/brands/gatorade-com
- **Vercel** — danger #ee0000 (Δ 1.335) — https://brandsweets.com/colors/brands/vercel
- **Netflix** — primary #e50914 (Δ 1.399) — https://brandsweets.com/colors/brands/netflix
- **Nintendo** — secondary #e60012 (Δ 1.482) — https://brandsweets.com/colors/brands/nintendo-com
- **Mattel** — secondary #ee0024 (Δ 1.51) — https://brandsweets.com/colors/brands/mattel-com
- **Walgreens** — secondary #e62600 (Δ 1.535) — https://brandsweets.com/colors/brands/walgreens-com
- **Lenovo** — secondary #e1251b (Δ 1.55) — https://brandsweets.com/colors/brands/lenovo-com
- **Vodafone** — primary #e60000 (Δ 1.623) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 1.623) — https://brandsweets.com/colors/brands/vodafone-com
- **WWE** — secondary #e40707 (Δ 1.71) — https://brandsweets.com/colors/brands/wwe-com
- **Pinterest** — accent #e60023 (Δ 1.717) — https://brandsweets.com/colors/brands/pinterest-com
- **Pringles** — secondary #ea002a (Δ 1.754) — https://brandsweets.com/colors/brands/pringles-com
- **Pinterest** — primary #e40424 (Δ 1.917) — https://brandsweets.com/colors/brands/pinterest-com
- **Pepsi** — secondary #e32934 (Δ 1.943) — https://brandsweets.com/colors/brands/pepsi-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/e91c1c-c4a19c-62cb98-2d251f-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: "#e91c1c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.