# #ef2d01

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

## Values

- Hex: `#ef2d01`
- RGB: rgb(239, 45, 1)
- HSL: hsl(11, 99%, 47%)
- OKLCH: oklch(0.614 0.231 32.3)
- Relative luminance: 0.2023
- Nearest named color: Arcade Fire (#ee3311, Δ 0.604) — https://brandsweets.com/colors/arcade-fire
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef2d01

## Tints & shades

- Tints (toward white): #fe380b, #fe4d25, #fe613e, #fe7658, #fe8f76, #fea48f, #ffb8a9, #ffcdc2, #ffe2db, #fff7f5
- Shades (toward black): #da2901, #c12401, #ad2001, #981d01, #841901, #6b1401, #561000, #420c00, #290800, #140400

## Harmonies

- Complementary: #01c3ef
- Analogous: #ef014c, #efa301
- Triadic: #01ef2d, #2d01ef
- Split-complementary: #01efa3, #014cef
- Tetradic: #4cef01, #01c3ef, #a301ef

## Colors that go with #ef2d01

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 #ef2d01: 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), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #ef2d01 — 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 #ef2d01: 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), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #ef2d01 in 7 real palettes, including Wired's brand system and Google's brand system, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Google (https://brandsweets.com/colors/brands/google-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 #ef2d01, 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 #ef2d01: 4 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 #ef2d01: 17 real palettes, including ElevenLabs's brand system and L'Oréal's brand system, as the accent. Seen in: ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), L'Oréal (https://brandsweets.com/colors/brands/loreal-com), YouTube (https://brandsweets.com/colors/brands/youtube-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ef2d01: 7 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), Replit (https://brandsweets.com/colors/brands/replit), Figma (https://brandsweets.com/colors/brands/figma). — 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 → #e42b01 (4.52:1); AA: background → #121212 (4.5:1); AAA: text → #ad2001 (7.04:1)
- On black (#000000): 5.05:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fe6543 (7.16:1)

## Brands using this color

- **Pizza Hut** — primary #ee3124 (Δ 1.33) — https://brandsweets.com/colors/brands/pizzahut-com
- **Hyundai** — secondary #e63312 (Δ 1.691) — 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/ef2d01-c4a89c-62cbab-2d281f-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: "#ef2d01" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.