# #d43538

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

## Values

- Hex: `#d43538`
- RGB: rgb(212, 53, 56)
- HSL: hsl(359, 65%, 52%)
- OKLCH: oklch(0.576 0.196 25)
- Relative luminance: 0.1683
- Nearest named color: Bento Box (#cc363c, Δ 1.611) — https://brandsweets.com/colors/bento-box
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/d43538

## Tints & shades

- Tints (toward white): #d94a4c, #dc5b5d, #e17072, #e48182, #e99697, #edabac, #f1bcbd, #f5d1d1, #f9e2e2, #fdf7f7
- Shades (toward black): #c62a2d, #b12528, #a02224, #8b1d1f, #76191b, #611516, #4c1011, #3b0c0d, #260809, #110404

## Harmonies

- Complementary: #35d4d2
- Analogous: #d43587, #d48235
- Triadic: #38d435, #3538d4
- Split-complementary: #35d482, #3587d4
- Tetradic: #87d435, #35d4d2, #8235d4

## Colors that go with #d43538

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 #d43538: 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 #d43538 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Toyota (https://brandsweets.com/colors/brands/toyota-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #d43538: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #d43538 in 7 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), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Tim Hortons's brand system and Doordash's brand system put Blue beside #d43538, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #d43538: 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), 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 #d43538 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), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #d43538: 19 real palettes, including McDonald's's brand system and Target : Expect More. Pay Less.'s brand system, as the accent. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.81:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a82426 (7.13:1)
- On black (#000000): 4.37:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d63d40 (4.6:1); AA: background → #fafafa (4.61:1); AAA: text → #e2787a (7.2:1)

## Brands using this color

- **Riot Games** — secondary #d1363a (Δ 0.595) — https://brandsweets.com/colors/brands/riotgames-com
- **DuckDuckGo** — secondary #d83544 (Δ 1.562) — https://brandsweets.com/colors/brands/duckduckgo-com
- **Casper Sleep** — primary #cc3b31 (Δ 1.871) — https://brandsweets.com/colors/brands/casper-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/d43538-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: "#d43538" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.