# #ef2a33

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

## Values

- Hex: `#ef2a33`
- RGB: rgb(239, 42, 51)
- HSL: hsl(357, 86%, 55%)
- OKLCH: oklch(0.615 0.228 25.5)
- Relative luminance: 0.2025
- Nearest named color: Barberry (#ee1133, Δ 1.8) — https://brandsweets.com/colors/barberry
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef2a33

## Tints & shades

- Tints (toward white): #f03d46, #f2545c, #f4676e, #f57a80, #f79297, #f8a5a9, #fab8bb, #fbcbcd, #fde3e4, #fef6f6
- Shades (toward black): #ed121d, #d5101a, #be0e17, #a60c14, #8e0b11, #72090e, #5a070b, #420508, #2b0305, #130102

## Harmonies

- Complementary: #2aefe5
- Analogous: #ef2a96, #ef822a
- Triadic: #33ef2a, #2a33ef
- Split-complementary: #2aef82, #2a96ef
- Tetradic: #96ef2a, #2aefe5, #822aef

## Colors that go with #ef2a33

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 #ef2a33: 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), Logitech (https://brandsweets.com/colors/brands/logitech-com), 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 #ef2a33 — 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), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), 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 #ef2a33: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), 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). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #ef2a33 in 7 real palettes, including Google's brand system and Wired's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Wired (https://brandsweets.com/colors/brands/wired-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — 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 #ef2a33, 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 #ef2a33: 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), Tide (https://brandsweets.com/colors/brands/tide-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ef2a33: 19 real palettes, including ElevenLabs's brand system and Costco's brand system, as the accent. Seen in: ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Costco (https://brandsweets.com/colors/brands/costco-com), Netflix (https://brandsweets.com/colors/brands/netflix), L'Oréal (https://brandsweets.com/colors/brands/loreal-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ef2a33: 7 real palettes, including Google's brand system and Databricks's brand system, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Databricks (https://brandsweets.com/colors/brands/databricks-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): 4.16:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e8111c (4.64:1); AA: background → #121212 (4.5:1); AAA: text → #af0d15 (7.26:1)
- On black (#000000): 5.05:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f4676e (7.01:1)

## Brands using this color

- **ElevenLabs** — primary #f41a2f (Δ 1.223) — https://brandsweets.com/colors/brands/elevenlabs-io
- **ElevenLabs** — secondary #f41a2f (Δ 1.223) — https://brandsweets.com/colors/brands/elevenlabs-io
- **Wise** — primary #f4243b (Δ 1.324) — https://brandsweets.com/colors/brands/wise-com
- **Pizza Hut** — primary #ee3124 (Δ 1.558) — https://brandsweets.com/colors/brands/pizzahut-com
- **Snyk** — secondary #ec3347 (Δ 1.935) — https://brandsweets.com/colors/brands/snyk-io

## 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/ef2a33-c49f9c-62cb93-2d251f-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: "#ef2a33" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.