# #fb312d

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

## Values

- Hex: `#fb312d`
- RGB: rgb(251, 49, 45)
- HSL: hsl(1, 96%, 58%)
- OKLCH: oklch(0.64 0.235 27.8)
- Relative luminance: 0.229
- Nearest named color: Apple Cherry (#f81404, Δ 2.592) — https://brandsweets.com/colors/apple-cherry
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/fb312d

## Tints & shades

- Tints (toward white): #fb4441, #fc5855, #fc6c69, #fc7f7d, #fd9391, #fda7a5, #febab9, #fececd, #fee2e1, #fff5f5
- Shades (toward black): #fa1814, #eb0905, #d20804, #b40704, #9b0603, #820503, #640402, #4b0302, #2d0201, #140100

## Harmonies

- Complementary: #2df7fb
- Analogous: #fb2d90, #fb972d
- Triadic: #2dfb31, #312dfb
- Split-complementary: #2dfb97, #2d90fb
- Tetradic: #90fb2d, #2df7fb, #972dfb

## Colors that go with #fb312d

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 #fb312d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Audi (https://brandsweets.com/colors/brands/audi-com), Logitech (https://brandsweets.com/colors/brands/logitech-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #fb312d: 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), Wired (https://brandsweets.com/colors/brands/wired-com), Substack (https://brandsweets.com/colors/brands/substack-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/steelblue
- **Cadet Blue** #5f9ea0 [harmony, pool: complementary] — Cadet Blue sits directly opposite #fb312d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue
- **Amber** #ffbf00 [pool] — Amber is paired with #fb312d in 7 real palettes, including Google's brand system and Heatwave, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Wired (https://brandsweets.com/colors/brands/wired-com), Ember (https://brandsweets.com/palettes/bold#ember). — 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 #fb312d, 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 #fb312d: 5 real palettes, including NASA's brand system and Tide's brand system, as the lead colour. Seen in: NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #fb312d: 14 real palettes, including L'Oréal's brand system and YouTube's brand system, as the accent. Seen in: L'Oréal (https://brandsweets.com/colors/brands/loreal-com), YouTube (https://brandsweets.com/colors/brands/youtube-com), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io), Strava (https://brandsweets.com/colors/brands/strava-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #fb312d: 7 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), Figma (https://brandsweets.com/colors/brands/figma), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 3.76:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #eb0905 (4.59:1); AA: background → #1c1c1c (4.53:1); AAA: text → #b40704 (7.06:1)
- On black (#000000): 5.58:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fc625f (7.05:1)

## Brands using this color

- **Databricks** — primary #fc341c (Δ 1.236) — https://brandsweets.com/colors/brands/databricks-com
- **Neon** — accent #ff3621 (Δ 1.422) — https://brandsweets.com/colors/brands/neon-tech
- **NASA** — accent #f64137 (Δ 1.729) — https://brandsweets.com/colors/brands/nasa-gov
- **Rotten Tomatoes** — accent #fa320a (Δ 1.79) — https://brandsweets.com/colors/brands/rottentomatoes-com
- **NASA** — secondary #fc3d21 (Δ 1.838) — https://brandsweets.com/colors/brands/nasa-gov
- **Doordash** — primary #ff3008 (Δ 1.865) — https://brandsweets.com/colors/brands/doordash-com

## Curated palettes containing it

- **Streetwear** (bold, vivid, dark) — #ff3b30, #ffffff, #ffe600, #0a0a0a — Black, white, red, yellow — drop-culture signal colors, unmissable at thumbnail size. — tool: https://brandsweets.com/palettes/new/ff3b30-ffffff-ffe600-0a0a0a — collection: https://brandsweets.com/palettes/bold

## 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/fb312d-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: "#fb312d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.