# #e2181b

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

## Values

- Hex: `#e2181b`
- RGB: rgb(226, 24, 27)
- HSL: hsl(359, 81%, 49%)
- OKLCH: oklch(0.58 0.228 27.9)
- Relative luminance: 0.169
- Nearest named color: Alarm (#ec0003, Δ 1.973) — https://brandsweets.com/colors/alarm
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/e2181b

## Tints & shades

- Tints (toward white): #e92b2e, #eb4245, #ee595b, #f07072, #f28789, #f4999b, #f7b1b2, #f9c8c8, #fcdfdf, #fef6f6
- Shades (toward black): #d01619, #b91316, #a61114, #8f0f11, #7d0d0f, #660b0c, #53090a, #3c0607, #2a0405, #120202

## Harmonies

- Complementary: #18e2df
- Analogous: #e21880, #e27a18
- Triadic: #1be218, #181be2
- Split-complementary: #18e27a, #1880e2
- Tetradic: #80e218, #18e2df, #7a18e2

## Colors that go with #e2181b

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 #e2181b: 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), IHG (https://brandsweets.com/colors/brands/ihg-com), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #e2181b — 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), WWE (https://brandsweets.com/colors/brands/wwe-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Vercel (https://brandsweets.com/colors/brands/vercel). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #e2181b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wired (https://brandsweets.com/colors/brands/wired-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #e2181b 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 native Cybersecurity's brand system and Doordash's brand system put Blue beside #e2181b, as the accent. Seen in: native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Gap (https://brandsweets.com/colors/brands/gap-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #e2181b: 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 #e2181b: 18 real palettes, including Netflix's brand system and McDonald's's brand system, as the accent. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #e2181b: 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), 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): 4.79:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #af1215 (7.19:1)
- On black (#000000): 4.38:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e7181c (4.55:1); AA: background → #fafafa (4.59:1); AAA: text → #f07072 (7.27:1)

## Brands using this color

- **Netflix** — primary #e50914 (Δ 0.712) — https://brandsweets.com/colors/brands/netflix
- **Toyota** — secondary #e10a1d (Δ 0.801) — https://brandsweets.com/colors/brands/toyota-com
- **WWE** — secondary #e40707 (Δ 0.874) — https://brandsweets.com/colors/brands/wwe-com
- **Lay's** — accent #df2027 (Δ 0.898) — https://brandsweets.com/colors/brands/lays-com
- **Lenovo** — secondary #e1251b (Δ 0.939) — https://brandsweets.com/colors/brands/lenovo-com
- **Nintendo** — secondary #e60012 (Δ 0.977) — https://brandsweets.com/colors/brands/nintendo-com
- **Formula 1** — secondary #e10600 (Δ 1.149) — https://brandsweets.com/colors/brands/formula1-com
- **Pinterest** — primary #e40424 (Δ 1.168) — https://brandsweets.com/colors/brands/pinterest-com
- **Vodafone** — primary #e60000 (Δ 1.184) — https://brandsweets.com/colors/brands/vodafone-com
- **Vodafone** — accent #e60000 (Δ 1.184) — https://brandsweets.com/colors/brands/vodafone-com
- **Pinterest** — accent #e60023 (Δ 1.303) — https://brandsweets.com/colors/brands/pinterest-com
- **Codecademy** — accent #dc2626 (Δ 1.329) — https://brandsweets.com/colors/brands/codecademy-com
- **Pinterest** — secondary #dd0e0e (Δ 1.371) — https://brandsweets.com/colors/brands/pinterest-com
- **Marvel** — accent #e62429 (Δ 1.51) — https://brandsweets.com/colors/brands/marvel-com
- **Pizza Hut** — secondary #e91c24 (Δ 1.611) — https://brandsweets.com/colors/brands/pizzahut-com
- **LG** — secondary #ea1917 (Δ 1.661) — https://brandsweets.com/colors/brands/lg-com
- **Gatorade** — secondary #ea0000 (Δ 1.672) — https://brandsweets.com/colors/brands/gatorade-com
- **MAC Cosmetics** — secondary #da1717 (Δ 1.677) — https://brandsweets.com/colors/brands/maccosmetics-com
- **KFC** — primary #e4002b (Δ 1.731) — https://brandsweets.com/colors/brands/kfc-com
- **KFC** — secondary #e4002b (Δ 1.731) — https://brandsweets.com/colors/brands/kfc-com
- **NASCAR** — secondary #e4002b (Δ 1.731) — https://brandsweets.com/colors/brands/nascar-com
- **McDonald's** — secondary #da291c (Δ 1.746) — https://brandsweets.com/colors/brands/mcdonalds-com
- **Budweiser** — primary #dc041c (Δ 1.754) — https://brandsweets.com/colors/brands/budweiser-com
- **Wired** — secondary #eb0000 (Δ 1.831) — https://brandsweets.com/colors/brands/wired-com
- **Twitch** — accent #eb0400 (Δ 1.836) — https://brandsweets.com/colors/brands/twitch-tv
- **Target : Expect More. Pay Less.** — primary #dc142c (Δ 1.887) — https://brandsweets.com/colors/brands/target-com
- **native Cybersecurity** — secondary #ec0000 (Δ 1.999) — https://brandsweets.com/colors/brands/crowdstrike-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/e2181b-c4a09c-62cb96-2d251f-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: "#e2181b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.