# #e91c37

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

## Values

- Hex: `#e91c37`
- RGB: rgb(233, 28, 55)
- HSL: hsl(352, 82%, 51%)
- OKLCH: oklch(0.598 0.23 22.9)
- Relative luminance: 0.1843
- Nearest named color: Barberry (#ee1133, Δ 0.98) — https://brandsweets.com/colors/barberry
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e91c37

## Tints & shades

- Tints (toward white): #eb334b, #ed455c, #ef5d70, #f17484, #f48b99, #f59ea9, #f8b5be, #faccd2, #fcdfe2, #fef6f7
- Shades (toward black): #d5152f, #c3132b, #ac1126, #950f21, #820d1c, #6b0b17, #540812, #3c060d, #2a0409, #130204

## Harmonies

- Complementary: #1ce9cd
- Analogous: #e91c9d, #e9671c
- Triadic: #37e91c, #1c37e9
- Split-complementary: #1ce967, #1c9de9
- Tetradic: #9de91c, #1ce9cd, #671ce9

## Colors that go with #e91c37

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 #e91c37: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), 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 #e91c37 — 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), Vercel (https://brandsweets.com/colors/brands/vercel), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e91c37: 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), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #e91c37 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 #e91c37, as the accent. Seen in: native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-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 #e91c37: 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 #e91c37: 18 real palettes, including Costco's brand system and ElevenLabs's brand system, as the supporting colour. Seen in: Costco (https://brandsweets.com/colors/brands/costco-com), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Netflix (https://brandsweets.com/colors/brands/netflix), 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 #e91c37: 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), Figma (https://brandsweets.com/colors/brands/figma), Replit (https://brandsweets.com/colors/brands/replit). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e81733 (4.56:1); AA: background → #050505 (4.55:1); AAA: text → #b01127 (7.11:1)
- On black (#000000): 4.69:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f06a7c (7.06:1)

## Brands using this color

- **AliExpress** — secondary #ea0934 (Δ 0.806) — https://brandsweets.com/colors/brands/aliexpress-com
- **Pringles** — secondary #ea002a (Δ 1.31) — https://brandsweets.com/colors/brands/pringles-com
- **Formula 1** — accent #e8002d (Δ 1.324) — https://brandsweets.com/colors/brands/formula1-com
- **Walgreens** — primary #e31836 (Δ 1.327) — https://brandsweets.com/colors/brands/walgreens-com
- **Costco** — primary #e31837 (Δ 1.333) — https://brandsweets.com/colors/brands/costco-com
- **Pepsi** — secondary #e32934 (Δ 1.432) — https://brandsweets.com/colors/brands/pepsi-com
- **Tiffany & Co.** — secondary #e50739 (Δ 1.567) — https://brandsweets.com/colors/brands/tiffany-com
- **Marvel** — accent #e62429 (Δ 1.613) — https://brandsweets.com/colors/brands/marvel-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.628) — https://brandsweets.com/colors/brands/pizzahut-com
- **Mattel** — secondary #ee0024 (Δ 1.707) — https://brandsweets.com/colors/brands/mattel-com
- **KFC** — primary #e4002b (Δ 1.917) — https://brandsweets.com/colors/brands/kfc-com
- **KFC** — secondary #e4002b (Δ 1.917) — https://brandsweets.com/colors/brands/kfc-com
- **NASCAR** — secondary #e4002b (Δ 1.917) — https://brandsweets.com/colors/brands/nascar-com
- **Pinterest** — accent #e60023 (Δ 1.965) — 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/e91c37-c49c9d-62cb8a-2d231f-f1e9ee?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: "#e91c37" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.