# #f21c55

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

## Values

- Hex: `#f21c55`
- RGB: rgb(242, 28, 85)
- HSL: hsl(344, 89%, 53%)
- OKLCH: oklch(0.618 0.237 15.2)
- Relative luminance: 0.2036
- Nearest named color: Bat’s Blood Soup (#ee3366, Δ 2.415) — https://brandsweets.com/colors/bats-blood-soup
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/f21c55

## Tints & shades

- Tints (toward white): #f33567, #f44876, #f66088, #f77396, #f88ba8, #f99fb7, #fbb7c9, #fccad7, #fde2e9, #fef5f8
- Shades (toward black): #e70d48, #cf0c40, #b70b39, #9f0931, #8c082b, #740724, #5c051c, #430415, #2b030d, #130106

## Harmonies

- Complementary: #1cf2b9
- Analogous: #f21cc0, #f24e1c
- Triadic: #55f21c, #1c55f2
- Split-complementary: #1cf24e, #1cc0f2
- Tetradic: #c0f21c, #1cf2b9, #4e1cf2

## Colors that go with #f21c55

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 #f21c55: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Audi (https://brandsweets.com/colors/brands/audi-com), Logitech (https://brandsweets.com/colors/brands/logitech-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal
- **Dodger Blue** #1e90ff [harmony, pool: triadic] — Dodger Blue completes a triad with #f21c55 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Databricks (https://brandsweets.com/colors/brands/databricks-com), Figma (https://brandsweets.com/colors/brands/figma), Replit (https://brandsweets.com/colors/brands/replit). — https://brandsweets.com/colors/dodgerblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #f21c55: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #f21c55 in 6 real palettes, including Google's brand system and Wired's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Wired (https://brandsweets.com/colors/brands/wired-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 native Cybersecurity's brand system and Gap's brand system put Blue beside #f21c55, as the accent. Seen in: native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Gap (https://brandsweets.com/colors/brands/gap-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Monzo (https://brandsweets.com/colors/brands/monzo-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #f21c55: 5 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 #f21c55: 19 real palettes, including ElevenLabs's brand system and Costco's brand system, as the accent. Seen in: ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Costco (https://brandsweets.com/colors/brands/costco-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #f21c55: 6 real palettes, including Wendy's's brand system and Nintendo's brand system, as the supporting colour. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), 3M (https://brandsweets.com/colors/brands/3m-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 4.14:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e70d48 (4.62:1); AA: background → #121212 (4.53:1); AAA: text → #b20a37 (7.02:1)
- On black (#000000): 5.07:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f6658c (7.16:1)

## 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/f21c55-c49ca2-62cb7c-2d221f-f1e9ef?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: "#f21c55" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.