# #fb5159

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

## Values

- Hex: `#fb5159`
- RGB: rgb(251, 81, 89)
- HSL: hsl(357, 96%, 65%)
- OKLCH: oklch(0.672 0.206 22.1)
- Relative luminance: 0.2712
- Nearest named color: Blood Burst (#ff474c, Δ 1.681) — https://brandsweets.com/colors/blood-burst
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/fb5159

## Tints & shades

- Tints (toward white): #fc5f67, #fc737a, #fc8288, #fd9196, #fda5a9, #fdb4b8, #fec3c6, #fed2d4, #fee6e7, #fff5f5
- Shades (toward black): #fb323c, #fa1420, #eb0510, #cd040e, #af040c, #8c030a, #6e0208, #500206, #320103, #140001

## Harmonies

- Complementary: #50fbf3
- Analogous: #fb50ae, #fb9d50
- Triadic: #59fb50, #5059fb
- Split-complementary: #50fb9d, #50aefb
- Tetradic: #aefb50, #50fbf3, #9d50fb

## Colors that go with #fb5159

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 #fb5159: 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), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Lido (https://brandsweets.com/palettes/vivid#lido), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Light Sea Green** #20b2aa [harmony, pool: complementary] — Light Sea Green sits directly opposite #fb5159 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #fb5159 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), Ember (https://brandsweets.com/palettes/bold#ember), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Monzo's brand system and Glossier's brand system put Blue beside #fb5159, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Glossier (https://brandsweets.com/colors/brands/glossier-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #fb5159: 4 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), Cobalt Pop (https://brandsweets.com/palettes/bold#cobalt-pop), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #fb5159 in 9 real palettes, including Snyk's brand system and Wise's brand system, as the lead colour. Seen in: Snyk (https://brandsweets.com/colors/brands/snyk-io), Wise (https://brandsweets.com/colors/brands/wise-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #fb5159: 14 real palettes, including Strava's brand system and PlanetScale's brand system, as the accent. Seen in: Strava (https://brandsweets.com/colors/brands/strava-com), PlanetScale (https://brandsweets.com/colors/brands/planetscale-com), Soundcloud (https://brandsweets.com/colors/brands/soundcloud-com), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #fb5159: 7 real palettes, including Google's brand system and Databricks's brand system, as the lead colour. 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), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 3.27:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #eb0510 (4.6:1); AA: background → #262626 (4.63:1); AAA: text → #b4040c (7.09:1)
- On black (#000000): 6.42:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #fc646c (7.18:1)

## Brands using this color

- **Airbnb** — primary #ff5a5f (Δ 1.775) — https://brandsweets.com/colors/brands/airbnb

## 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/fb5159-c49f9c-62cb93-2d251f-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: "#fb5159" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.