# #e42b01

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

## Values

- Hex: `#e42b01`
- RGB: rgb(228, 43, 1)
- HSL: hsl(11, 99%, 45%)
- OKLCH: oklch(0.593 0.222 32.3)
- Relative luminance: 0.1822
- Nearest named color: Arcade Fire (#ee3311, Δ 2.405) — https://brandsweets.com/colors/arcade-fire
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e42b01

## Tints & shades

- Tints (toward white): #fe3001, #fe4820, #fe5d39, #fe7252, #fe8b71, #fea08a, #ffb4a4, #ffc9bd, #ffe2db, #fff7f5
- Shades (toward black): #d02701, #bc2301, #a71f01, #931c01, #7f1801, #651301, #510f00, #3d0b00, #290800, #140400

## Harmonies

- Complementary: #01bbe4
- Analogous: #e40149, #e49c01
- Triadic: #01e42b, #2b01e4
- Split-complementary: #01e49c, #0149e4
- Tetradic: #49e401, #01bbe4, #9c01e4

## Colors that go with #e42b01

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 #e42b01: 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 #e42b01 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: WWE (https://brandsweets.com/colors/brands/wwe-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Vercel (https://brandsweets.com/colors/brands/vercel), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #e42b01 — 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 #e42b01: 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 #e42b01 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), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — 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 #e42b01, 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 #e42b01: 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), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e42b01: 19 real palettes, including McDonald's's brand system and Netflix's brand system, as the accent. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Netflix (https://brandsweets.com/colors/brands/netflix), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.52:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ad2001 (7.04:1)
- On black (#000000): 4.64:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fe6543 (7.16:1)

## Brands using this color

- **Walgreens** — secondary #e62600 (Δ 0.511) — https://brandsweets.com/colors/brands/walgreens-com
- **JBL** — secondary #df2d00 (Δ 0.967) — https://brandsweets.com/colors/brands/jbl-com
- **Hyundai** — secondary #e63312 (Δ 1.058) — https://brandsweets.com/colors/brands/hyundaiusa-com
- **Lenovo** — secondary #e1251b (Δ 1.476) — https://brandsweets.com/colors/brands/lenovo-com
- **Doordash** — secondary #eb1700 (Δ 1.728) — https://brandsweets.com/colors/brands/doordash-com
- **Databricks** — secondary #eb1600 (Δ 1.763) — https://brandsweets.com/colors/brands/databricks-com
- **LG** — secondary #ea1917 (Δ 1.951) — https://brandsweets.com/colors/brands/lg-com
- **Tinder** — secondary #ec180e (Δ 1.967) — https://brandsweets.com/colors/brands/tinder-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/e42b01-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: "#e42b01" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.