# #d21c19

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

## Values

- Hex: `#d21c19`
- RGB: rgb(210, 28, 25)
- HSL: hsl(1, 79%, 46%)
- OKLCH: oklch(0.552 0.213 28.4)
- Relative luminance: 0.146
- Nearest named color: Angry Tomato (#d82029, Δ 1.737) — https://brandsweets.com/colors/angry-tomato
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/d21c19

## Tints & shades

- Tints (toward white): #e5231f, #e73936, #eb5452, #ed6b68, #f0817f, #f39896, #f5aead, #f9c9c8, #fbe0df, #fef6f6
- Shades (toward black): #c01916, #ad1714, #971412, #841110, #720f0d, #600d0b, #4e0a09, #370706, #250504, #120202

## Harmonies

- Complementary: #19cfd2
- Analogous: #d21972, #d27819
- Triadic: #19d21c, #1c19d2
- Split-complementary: #19d278, #1972d2
- Tetradic: #72d219, #19cfd2, #7819d2

## Colors that go with #d21c19

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 #d21c19: 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), IHG (https://brandsweets.com/colors/brands/ihg-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), 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 #d21c19 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), 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 #d21c19: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #d21c19 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #d21c19 in 6 real palettes, including McDonald's's brand system and Maple, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Maple (https://brandsweets.com/palettes/warm#maple), Wired (https://brandsweets.com/colors/brands/wired-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Tim Hortons's brand system and native Cybersecurity's brand system put Blue beside #d21c19, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #d21c19: 5 real palettes, including Behance's brand system and Walgreens's brand system, as the supporting colour. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), MLB (https://brandsweets.com/colors/brands/mlb-com), NASA (https://brandsweets.com/colors/brands/nasa-gov). — https://brandsweets.com/colors/cobalt
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #d21c19 in 5 real palettes, including Farmers Market and Magazine Ochre, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 5.36:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ad1714 (7.22:1)
- On black (#000000): 3.92:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e41e1b (4.5:1); AA: background → #ededed (4.58:1); AAA: text → #ee6f6d (7.13:1)

## Brands using this color

- **Burberry** — secondary #d5151f (Δ 0.84) — https://brandsweets.com/colors/brands/burberry-com
- **State Farm** — primary #d62311 (Δ 1.286) — https://brandsweets.com/colors/brands/statefarm-com
- **Behance** — accent #d00d00 (Δ 1.302) — https://brandsweets.com/colors/brands/behance-net
- **Ferrari** — primary #d40000 (Δ 1.321) — https://brandsweets.com/colors/brands/ferrari-com
- **M&M's** — secondary #d70100 (Δ 1.394) — https://brandsweets.com/colors/brands/mms-com
- **Wells Fargo** — primary #d71e28 (Δ 1.508) — https://brandsweets.com/colors/brands/wellsfargo-com
- **MAC Cosmetics** — secondary #da1717 (Δ 1.556) — https://brandsweets.com/colors/brands/maccosmetics-com
- **GitHub** — danger #cf222e (Δ 1.608) — https://brandsweets.com/colors/brands/github
- **Burger King** — primary #d62300 (Δ 1.628) — https://brandsweets.com/colors/brands/bk-com
- **Foot Locker** — secondary #d12e20 (Δ 1.633) — https://brandsweets.com/colors/brands/footlocker-com
- **Coinbase** — danger #cf202f (Δ 1.745) — https://brandsweets.com/colors/brands/coinbase
- **Tim Hortons** — secondary #d0142c (Δ 1.847) — https://brandsweets.com/colors/brands/timhortons-com
- **Wise** — accent #cb272f (Δ 1.993) — https://brandsweets.com/colors/brands/wise-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/d21c19-c4a19c-62cb9a-2d261f-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: "#d21c19" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.