# #e91c01

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

## Values

- Hex: `#e91c01`
- RGB: rgb(233, 28, 1)
- HSL: hsl(7, 99%, 46%)
- OKLCH: oklch(0.594 0.234 30.6)
- Relative luminance: 0.1816
- Nearest named color: Alarm (#ec0003, Δ 1.151) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e91c01

## Tints & shades

- Tints (toward white): #fe2306, #fe3a20, #fe553e, #fe6b58, #fe8171, #fe988a, #ffaea4, #ffc9c2, #ffe0db, #fff6f5
- Shades (toward black): #d51a01, #c11701, #a71401, #931201, #7f0f01, #6b0d01, #560a00, #3d0700, #290500, #140200

## Harmonies

- Complementary: #01cee9
- Analogous: #e9015a, #e99001
- Triadic: #01e91c, #1c01e9
- Split-complementary: #01e990, #015ae9
- Tetradic: #5ae901, #01cee9, #9001e9

## Colors that go with #e91c01

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 #e91c01: 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), Logitech (https://brandsweets.com/colors/brands/logitech-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), 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 #e91c01 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Vercel (https://brandsweets.com/colors/brands/vercel), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), WWE (https://brandsweets.com/colors/brands/wwe-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 #e91c01 — 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 #e91c01: 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 #e91c01 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 #e91c01, 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), Glossier (https://brandsweets.com/colors/brands/glossier-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e91c01: 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 #e91c01: 19 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), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.53:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ad1501 (7.28:1)
- On black (#000000): 4.63:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fe624d (7.07:1)

## Brands using this color

- **Doordash** — secondary #eb1700 (Δ 0.412) — https://brandsweets.com/colors/brands/doordash-com
- **Databricks** — secondary #eb1600 (Δ 0.436) — https://brandsweets.com/colors/brands/databricks-com
- **Tinder** — secondary #ec180e (Δ 0.742) — https://brandsweets.com/colors/brands/tinder-com
- **Walgreens** — secondary #e62600 (Δ 0.83) — https://brandsweets.com/colors/brands/walgreens-com
- **LG** — secondary #ea1917 (Δ 0.846) — https://brandsweets.com/colors/brands/lg-com
- **Twitch** — accent #eb0400 (Δ 0.985) — https://brandsweets.com/colors/brands/twitch-tv
- **Wired** — secondary #eb0000 (Δ 1.102) — https://brandsweets.com/colors/brands/wired-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.118) — https://brandsweets.com/colors/brands/crowdstrike-com
- **Gatorade** — secondary #ea0000 (Δ 1.124) — https://brandsweets.com/colors/brands/gatorade-com
- **Vercel** — danger #ee0000 (Δ 1.254) — https://brandsweets.com/colors/brands/vercel
- **Vodafone** — primary #e60000 (Δ 1.517) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 1.517) — https://brandsweets.com/colors/brands/vodafone-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.526) — https://brandsweets.com/colors/brands/pizzahut-com
- **Lenovo** — secondary #e1251b (Δ 1.653) — https://brandsweets.com/colors/brands/lenovo-com
- **Netflix** — primary #e50914 (Δ 1.662) — https://brandsweets.com/colors/brands/netflix
- **WWE** — secondary #e40707 (Δ 1.681) — https://brandsweets.com/colors/brands/wwe-com
- **Nintendo** — secondary #e60012 (Δ 1.742) — https://brandsweets.com/colors/brands/nintendo-com
- **Marvel** — accent #e62429 (Δ 1.805) — https://brandsweets.com/colors/brands/marvel-com
- **Hyundai** — secondary #e63312 (Δ 1.88) — https://brandsweets.com/colors/brands/hyundaiusa-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/e91c01-c4a59c-62cba4-2d271f-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: "#e91c01" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.