# #ff643d

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

## Values

- Hex: `#ff643d`
- RGB: rgb(255, 100, 61)
- HSL: hsl(12, 100%, 62%)
- OKLCH: oklch(0.696 0.197 35.2)
- Relative luminance: 0.3071
- Nearest named color: tomato (#ff6347, Δ 0.986) — https://brandsweets.com/colors/tomato
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ff643d

## Tints & shades

- Tints (toward white): #ff7452, #ff8161, #ff9175, #ff9d85, #ffad99, #ffbead, #ffcabd, #ffdad1, #ffe7e0, #fff7f5
- Shades (toward black): #ff4b1f, #ff3300, #e62e00, #c72800, #a82200, #8a1c00, #6b1500, #521000, #330a00, #140400

## Harmonies

- Complementary: #3dd8ff
- Analogous: #ff3d77, #ffc53d
- Triadic: #3dff64, #643dff
- Split-complementary: #3dffc5, #3d77ff
- Tetradic: #77ff3d, #3dd8ff, #c53dff

## Colors that go with #ff643d

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 #ff643d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Harbour (https://brandsweets.com/palettes/cool#harbour), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Light Sea Green** #20b2aa [harmony, pool: complementary] — Light Sea Green sits directly opposite #ff643d 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 #ff643d in 7 real palettes, including Ember and Heatwave, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Maple (https://brandsweets.com/palettes/warm#maple), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #ff643d, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Glossier (https://brandsweets.com/colors/brands/glossier-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #ff643d: 4 real palettes, including Alpine and Diner, as the supporting colour. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Diner (https://brandsweets.com/palettes/vivid#diner), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #ff643d: 4 real palettes, including Tide's brand system and NASA's brand system, as the lead colour. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Cobalt Pop (https://brandsweets.com/palettes/bold#cobalt-pop), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #ff643d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), JBL (https://brandsweets.com/colors/brands/jbl-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #ff643d in 7 real palettes, including Burger King's brand system and Pizza Hut's brand system, as the lead colour. Seen in: Burger King (https://brandsweets.com/colors/brands/bk-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 2.94:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #e02d00 (4.62:1); AA: background → #2e2e2e (4.62:1); AAA: text → #a82200 (7.26:1); AAA: background → #030303 (7.01:1)
- On black (#000000): 7.14:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Postman** — primary #fc6c34 (Δ 1.901) — https://brandsweets.com/colors/brands/postman-com
- **Cloudflare** — secondary #ff5e1f (Δ 1.913) — https://brandsweets.com/colors/brands/cloudflare

## Curated palettes containing it

- **Fresh Juice** (playful, vivid, light) — #ff6b35, #ffd166, #06d6a0, #ffffff, #1f1f1f — Orange, mango and mint — a sugar rush; keep the type black so it stays legible under all that color. — tool: https://brandsweets.com/palettes/new/ff6b35-ffd166-06d6a0-ffffff-1f1f1f — collection: https://brandsweets.com/palettes/playful
- **Night Market** (neon, vivid, dark, warm) — #ff5f1f, #ff2fb3, #ffd400, #120b14, #fff1e6 — Orange, magenta and yellow neon on aubergine-black — the street-sign palette for food, nightlife and events. — tool: https://brandsweets.com/palettes/new/ff5f1f-ff2fb3-ffd400-120b14-fff1e6 — collection: https://brandsweets.com/palettes/neon

## 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/ff643d-c4a99c-62cbad-2d281f-f1e9ec?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: "#ff643d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.