# #ef0b2a

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

## Values

- Hex: `#ef0b2a`
- RGB: rgb(239, 11, 42)
- HSL: hsl(352, 91%, 49%)
- OKLCH: oklch(0.602 0.241 25)
- Relative luminance: 0.1876
- Nearest named color: Barberry (#ee1133, Δ 0.736) — https://brandsweets.com/colors/barberry
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef0b2a

## Tints & shades

- Tints (toward white): #f41f3b, #f63751, #f75066, #f8687b, #f98090, #fa94a1, #fbacb7, #fcc5cc, #fddde1, #fff5f6
- Shades (toward black): #db0a26, #c30922, #af081f, #97071a, #840617, #6b0513, #58040f, #3f030b, #2c0208, #130103

## Harmonies

- Complementary: #0befd0
- Analogous: #ef0b9b, #ef5f0b
- Triadic: #2aef0b, #0b2aef
- Split-complementary: #0bef5f, #0b9bef
- Tetradic: #9bef0b, #0befd0, #5f0bef

## Colors that go with #ef0b2a

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 #ef0b2a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Logitech (https://brandsweets.com/colors/brands/logitech-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Codecademy (https://brandsweets.com/colors/brands/codecademy-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 #ef0b2a — 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 #ef0b2a: 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), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #ef0b2a 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), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — 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 #ef0b2a, 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 #ef0b2a: 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 #ef0b2a: 18 real palettes, including ElevenLabs's brand system and Netflix's brand system, as the accent. Seen in: ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Netflix (https://brandsweets.com/colors/brands/netflix), Costco (https://brandsweets.com/colors/brands/costco-com), L'Oréal (https://brandsweets.com/colors/brands/loreal-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ef0b2a: 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): 4.42:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #ea0b29 (4.59:1); AA: background → #080808 (4.53:1); AAA: text → #b4081f (7.01:1)
- On black (#000000): 4.75:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f86377 (7.04:1)

## Brands using this color

- **Mattel** — secondary #ee0024 (Δ 0.549) — https://brandsweets.com/colors/brands/mattel-com
- **Pringles** — secondary #ea002a (Δ 1.19) — https://brandsweets.com/colors/brands/pringles-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.391) — https://brandsweets.com/colors/brands/pizzahut-com
- **AliExpress** — secondary #ea0934 (Δ 1.394) — https://brandsweets.com/colors/brands/aliexpress-com
- **ElevenLabs** — primary #f41a2f (Δ 1.395) — https://brandsweets.com/colors/brands/elevenlabs-io
- **ElevenLabs** — secondary #f41a2f (Δ 1.395) — https://brandsweets.com/colors/brands/elevenlabs-io
- **Formula 1** — accent #e8002d (Δ 1.632) — https://brandsweets.com/colors/brands/formula1-com
- **LG** — secondary #ea1917 (Δ 1.746) — https://brandsweets.com/colors/brands/lg-com
- **Tinder** — secondary #ec180e (Δ 1.905) — https://brandsweets.com/colors/brands/tinder-com
- **Marvel** — accent #e62429 (Δ 1.918) — https://brandsweets.com/colors/brands/marvel-com
- **Vercel** — danger #ee0000 (Δ 1.926) — https://brandsweets.com/colors/brands/vercel

## 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/ef0b2a-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: "#ef0b2a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.