# #e01f3f

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

## Values

- Hex: `#e01f3f`
- RGB: rgb(224, 31, 63)
- HSL: hsl(350, 76%, 50%)
- OKLCH: oklch(0.584 0.22 20.4)
- Relative luminance: 0.1719
- Nearest named color: crimson (#dc143c, Δ 1.248) — https://brandsweets.com/colors/crimson
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e01f3f

## Tints & shades

- Tints (toward white): #e33552, #e74b65, #e95d75, #ec7488, #ef8a9b, #f2a1ae, #f5b7c2, #f8c9d1, #fbe0e4, #fef6f7
- Shades (toward black): #ca1c39, #b81934, #a2162d, #901428, #791122, #630d1c, #510b17, #3a0810, #28060b, #120205

## Harmonies

- Complementary: #1fe0c0
- Analogous: #e01fa0, #e05f1f
- Triadic: #3fe01f, #1f3fe0
- Split-complementary: #1fe05f, #1fa0e0
- Tetradic: #a0e01f, #1fe0c0, #5f1fe0

## Colors that go with #e01f3f

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 #e01f3f: 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 #e01f3f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Toyota (https://brandsweets.com/colors/brands/toyota-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #e01f3f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), 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 #e01f3f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #e01f3f in 7 real palettes, including McDonald's's brand system and Wired's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wired (https://brandsweets.com/colors/brands/wired-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 Tim Hortons's brand system and native Cybersecurity's brand system put Blue beside #e01f3f, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e01f3f: 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), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e01f3f: 18 real palettes, including Costco's brand system and Target : Expect More. Pay Less.'s brand system, as the supporting colour. Seen in: Costco (https://brandsweets.com/colors/brands/costco-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Netflix (https://brandsweets.com/colors/brands/netflix), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.73:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #af1831 (7.01:1)
- On black (#000000): 4.44:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e12343 (4.52:1); AA: background → #fafafa (4.53:1); AAA: text → #eb6f84 (7.14:1)

## Brands using this color

- **Costco** — primary #e31837 (Δ 0.943) — https://brandsweets.com/colors/brands/costco-com
- **Walgreens** — primary #e31836 (Δ 1.022) — https://brandsweets.com/colors/brands/walgreens-com
- **Wendy's** — primary #dd1438 (Δ 1.18) — https://brandsweets.com/colors/brands/wendys-com
- **Tiffany & Co.** — secondary #e50739 (Δ 1.261) — https://brandsweets.com/colors/brands/tiffany-com
- **Red Bull** — secondary #db0a40 (Δ 1.867) — https://brandsweets.com/colors/brands/redbull-com
- **Pepsi** — secondary #e32934 (Δ 1.908) — https://brandsweets.com/colors/brands/pepsi-com
- **Redfin** — primary #dc3443 (Δ 1.937) — https://brandsweets.com/colors/brands/redfin-com

## Curated palettes containing it

- **Tabloid** (editorial, bold, vivid) — #e11d48, #111111, #facc15, #ffffff — Red, black and yellow on white is the loudest three-color system in print — use it when headlines are the product. — tool: https://brandsweets.com/palettes/new/e11d48-111111-facc15-ffffff — collection: https://brandsweets.com/palettes/editorial
- **Gemstone** (jewel-tones, vivid, dark, luxury) — #0f766e, #7e22ce, #e11d48, #0f0a1a, #f5eef8 — Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic. — tool: https://brandsweets.com/palettes/new/0f766e-7e22ce-e11d48-0f0a1a-f5eef8 — collection: https://brandsweets.com/palettes/jewel-tones

## 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/e01f3f-c49c9e-62cb87-2d231f-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: "#e01f3f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.